Stephen Hawking

(Stephen William Hawking)

Stephen Hawking
Stephen Hawking
  • Born: January 8, 1942
  • Died: March 14, 2018
  • Nationality: British
  • Profession: Physicist









Quote Topics Cited
Asking what was before the Big Bang is like asking what is North of the North Pole. It is not a defined question and has no meaning. Science, Mathematics, Engineering & Technology
I don’t want to offend anyone of faith, but I think that science has some more compelling explanation than a divine creator Science, Mathematics, Engineering & Technology
I have noticed even people who claim everything is predestined, and that we can do nothing to change it, look before they cross the road Miscellaneous
I once gave a lecture in Japan where I was asked not to mention the end of the Universe lest it affect the Japanese stock market. Science, Mathematics, Engineering & Technology
I think that the development of artificial intelligence could lead to the end of the human race. Human Nature ;Science, Mathematics, Engineering & Technology
The Ultimate Mystery: Why the universe ever existed at all. Science, Mathematics, Engineering & Technology
The whole history of science has been the gradual realization that events do not happen in an arbitrary manner, but that they reflect a certain underlying order, which may or may not be divinely inspired History
There are many in the field of cosmology, who believe as I do, that finding ways to travel great distances will be essential to keeping human kind alive in an aging universe. Space Exploration
A few years ago, the city council of Monza, Italy, barred pet owners from keeping goldfish in curved bowls... saying that it is cruel to keep a fish in a bowl with curved sides because, gazing out, the fish would have a distorted view of reality. But how do we know we have the true, undistorted picture of reality?
A zero-gravity flight is a first step toward space travel. Travel
According to 'M' theory, ours is not the only universe. Instead, 'M' theory predicts that a great many universes were created out of nothing.
All my adult life people have been helping me. Life
Although almost every theoretical physicist agrees with my prediction that a black hole should glow like a hot body, it would be very difficult to verify experimentally because the temperature of a macroscopic black hole is so low.
Although September 11 was horrible, it didn't threaten the survival of the human race, like nuclear weapons do.
Among physicists, I'm respected I hope. Hope
As a child, I wanted to know how things worked and to control them. With a friend, I built a number of complicated models that I could control.
As Irving Good realised in 1965, machines with superhuman intelligence could repeatedly improve their design even further, triggering what Vernor Vinge called a 'singularity.'
As scientists, we step on the shoulders of science, building on the work that has come before us - aiming to inspire a new generation of young scientists to continue once we are gone. Science, Mathematics, Engineering & Technology ;Work, Workers & The Labor Force
Because there is a law such as gravity, the universe can and will create itself from nothing.
Before 1915, space and time were thought of as a fixed arena in which events took place, but which was not affected by what happened in it. Space and time are now dynamic quantities... space and time not only affect but are also affected by everything that happens in the universe. Time
Before I lost my voice, it was slurred, so only those close to me could understand, but with the computer voice, I found I could give popular lectures. I enjoy communicating science. It is important that the public understands basic science, if they are not to leave vital decisions to others. Science, Mathematics, Engineering & Technology
Before we understand science, it is natural to believe that God created the universe. Religion & God ;Science, Mathematics, Engineering & Technology
Cambridge is one of the best universities in the world, especially in my field.
Computers double their performance every month. Science, Mathematics, Engineering & Technology
Cosmology is a rapidly advancing field.
Earth might one day soon resemble the planet Venus.
Even if it turns out that time travel is impossible, it is important that we understand why it is impossible. Time ;Travel
Even if there is only one possible unified theory, it is just a set of rules and equations. What is it that breathes fire into the equations and makes a universe for them to describe?
Evolution has ensured that our brains just aren't equipped to visualise 11 dimensions directly. However, from a purely mathematical point of view it's just as easy to think in 11 dimensions, as it is to think in three or four.
Exploration by real people inspires us.
For years, my early work with Roger Penrose seemed to be a disaster for science. It showed that the universe must have begun with a singularity, if Einstein's general theory of relativity is correct. That appeared to indicate that science could not predict how the universe would begin. Science, Mathematics, Engineering & Technology ;Work, Workers & The Labor Force
God is the name people give to the reason we are here. But I think that reason is the laws of physics rather than someone with whom one can have a personal relationship. An impersonal God. Religion & God
God may exist, but science can explain the universe without the need for a creator. Religion & God ;Science, Mathematics, Engineering & Technology
God not only plays dice, He also sometimes throws the dice where they cannot be seen. Religion & God
However difficult life may seem, there is always something you can do and succeed at. Life
I am in touch with a company that hopes to replicate my voice. However, they are not replicating my original voice - if they did that, I would sound like a man in his 20s, which would be very strange! They are actually trying to replicate the synthesizer that sits on my wheelchair.
I am just a child who has never grown up. I still keep asking these 'how' and 'why' questions. Occasionally, I find an answer.
I believe alien life is quite common in the universe, although intelligent life is less so. Some say it has yet to appear on planet Earth. Life
I believe everyone should have a broad picture of how the universe operates and our place in it. It is a basic human desire. And it also puts our worries in perspective.
I believe in universal health care. And I am not afraid to say so. Health, Healthcare & Medicine
I believe the universe is governed by the laws of science. The laws may have been decreed by God, but God does not intervene to break the laws. Religion & God ;Science, Mathematics, Engineering & Technology
I believe there are no questions that science can't answer about a physical universe. Science, Mathematics, Engineering & Technology
I believe things cannot make themselves impossible.
I can't disguise myself with a wig and dark glasses - the wheelchair gives me away.
I can't say that my disability has helped my work, but it has allowed me to concentrate on research without having to lecture or sit on boring committees. Work, Workers & The Labor Force
I don't care much for equations myself. This is partly because it is difficult for me to write them down, but mainly because I don't have an intuitive feeling for equations.
I don't have much positive to say about motor neuron disease, but it taught me not to pity myself because others were worse off, and to get on with what I still could do. I'm happier now than before I developed the condition.
I don't have much positive to say about motor neurone disease. But it taught me not to pity myself because others were worse off, and to get on with what I could still do.
I don't think the human race will survive the next thousand years, unless we spread into space.
I don't want to write an autobiography because I would become public property with no privacy left.
I enjoy all forms of music - pop, classical and opera. Music, Chants & Rapps
I entered the health care debate in response to a statement in the United States press in summer 2009 which claimed the National Health Service in Great Britain would have killed me off, were I a British citizen. I felt compelled to make a statement to explain the error. Health, Healthcare & Medicine
I first had the idea of writing a popular book about the universe in 1982. My intention was partly to earn money to pay my daughter's school fees. Money, Coins & Minting
I grew up thinking that a research scientist was a natural thing to be.
I had a bet with Gordon Kane of Michigan University that the Higgs particle wouldn't be found.
I had not expected 'A Brief History of Time' to be a best seller. Time ;History
I had not expected 'A Brief History of Time' to be a best seller. It was my first popular book and aroused a great deal of interest. Initially, many people found it difficult to understand. I therefore decided to try to write a new version that would be easier to follow. Time ;History
I have a full and satisfying life. My work and my family are very important to me. Life ;Families, Children & Parenting ;Work, Workers & The Labor Force
I have found far greater enthusiasm for science in America than here in Britain. There is more enthusiasm for everything in America. Science, Mathematics, Engineering & Technology
I have noticed even people who claim everything is predestined, and that we can do nothing to change it, look before they cross the road.
I have noticed that even people who claim everything is pre­determined and that we can do nothing to change it look before they cross the road.
I have visited Japan several times and have always been shown wonderful hospitality.
I have wanted to fly into space for many years, but never imagined it would really be feasible.
I have wondered about time all my life. Life ;Time
I hope I have helped to raise the profile of science and to show that physics is not a mystery but can be understood by ordinary people. Hope ;Science, Mathematics, Engineering & Technology
I regard the brain as a computer which will stop working when its components fail. There is no heaven or afterlife for broken down computers; that is a fairy story for people afraid of the dark. Science, Mathematics, Engineering & Technology
I think computer viruses should count as life. I think it says something about human nature that the only form of life we have created so far is purely destructive. We've created life in our own image. Life ;Nature ;Science, Mathematics, Engineering & Technology
I think it quite likely that we are the only civilization within several hundred light years; otherwise we would have heard radio waves.
I think the brain is essentially a computer and consciousness is like a computer program. It will cease to run when the computer is turned off. Theoretically, it could be re-created on a neural network, but that would be very difficult, as it would require all one's memories.
I think the discovery of supersymmetric partners for the known particles would revolutionize our understanding of the universe.
I think the human race doesn't have a future if it doesn't go into space. Future
I think those who have a terminal illness and are in great pain should have the right to choose to end their own life, and those that help them should be free from prosecution. Life
I think we have a good chance of surviving long enough to colonize the solar system.
I used to think information was destroyed in black hole. This was my biggest blunder, or at least my biggest blunder in science. Science, Mathematics, Engineering & Technology
I want my books sold on airport bookstalls.
I want to know why the universe exists, why there is something greater than nothing.
I was born on January 8, 1942, exactly three hundred years after the death of Galileo. I estimate, however, that about two hundred thousand other babies were also born that day. I don't know whether any of them was later interested in astronomy. Death
I was never top of the class at school, but my classmates must have seen potential in me, because my nickname was 'Einstein.'
I was not a good student. I did not spend much time at college; I was too busy enjoying myself. Time
I would like nuclear fusion to become a practical power source. It would provide an inexhaustible supply of energy, without pollution or global warming. Power
I wouldn't be here today if it were not for the NHS. I have received a large amount of high-quality treatment without which I would not have survived.
If I had a time machine, I'd visit Marilyn Monroe in her prime or drop in on Galileo as he turned his telescope to the heavens. Time
If the rate of expansion one second after the Big Bang had been smaller by even one part in a hundred thousand million million, it would have recollapsed before it reached its present size. On the other hand, if it had been greater by a part in a million, the universe would have expanded too rapidly for stars and planets to form.
If we do discover a complete theory, it should be in time understandable in broad principle by everyone. Then we shall all, philosophers, scientists, and just ordinary people be able to take part in the discussion of why we and the universe exist. Time
If we want to travel into the future, we just need to go fast. Really fast. And I think the only way we're ever likely to do that is by going into space. Future ;Travel
If you believe in science, like I do, you believe that there are certain laws that are always obeyed. Science, Mathematics, Engineering & Technology
If you understand the universe, you control it, in a way.
I'm an atheist.
I'm never any good in the morning. It is only after four in the afternoon that I get going. Morning
I'm not afraid of death, but I'm in no hurry to die. I have so much I want to do first. Death
Imaginary time is a new dimension, at right angles to ordinary, real time. Time
In Britain, like most of the developed world, stem-cell research is regarded as a great opportunity. America will be left behind if it doesn't change policy.
In less than a hundred years, we have found a new way to think of ourselves. From sitting at the center of the universe, we now find ourselves orbiting an average-sized sun, which is just one of millions of stars in our own Milky Way galaxy.
In my opinion, there is no aspect of reality beyond the reach of the human mind.
In my school, the brightest boys did math and physics, the less bright did physics and chemistry, and the least bright did biology. I wanted to do math and physics, but my father made me do chemistry because he thought there would be no jobs for mathematicians.
In the past, there was active discrimination against women in science. That has now gone, and although there are residual effects, these are not enough to account for the small numbers of women, particularly in mathematics and physics. Women ;Science, Mathematics, Engineering & Technology
Intelligence is the ability to adapt to change. Intelligence, Spying, Espionage & Covert Operations
It is extremely important to me to write for children.
It is generally recognised that women are better than men at languages, personal relations and multi-tasking, but less good at map-reading and spatial awareness. It is therefore not unreasonable to suppose that women might be less good at mathematics and physics. Women
It is no good getting furious if you get stuck. What I do is keep thinking about the problem but work on something else. Sometimes it is years before I see the way forward. In the case of information loss and black holes, it was 29 years. Work, Workers & The Labor Force
It is not clear that intelligence has any long-term survival value.
It now appears that the way the universe began can indeed be determined, using imaginary time. Time
It was Einstein's dream to discover the grand design of the universe, a single theory that explains everything. However, physicists in Einstein's day hadn't made enough progress in understanding the forces of nature for that to be a realistic goal. Nature
It's a pity that nobody has found an exploding black hole. If they had, I would have won a Nobel prize.
It's time to commit to finding the answer, to search for life beyond Earth. Mankind has a deep need to explore, to learn, to know. We also happen to be sociable creatures. It is important for us to know if we are alone in the dark. Life ;Time
Keeping an active mind has been vital to my survival, as has been maintaining a sense of humor. Humor
Life on Earth is at the ever-increasing risk of being wiped out by a disaster, such as sudden global nuclear war, a genetically engineered virus or other dangers we have not yet thought of. Life ;War & Peace
Life would be tragic if it weren't funny. Life ;Humor
Look up at the stars and not down at your feet. Try to make sense of what you see, and wonder about what makes the universe exist. Be curious.
Many badly needed goals, like fusion and cancer cure, would be achieved much sooner if we invested more.
Many people find the universe confusing - it's not.
Maybe I don't have the most common kind of motor neuron disease, which usually kills in two or three years.
Most people don't have time to master the very mathematical details of theoretical physics. Time
Most sets of values would give rise to universes that, although they might be very beautiful, would contain no one able to wonder at that beauty.
M-theory is the unified theory Einstein was hoping to find.
My discovery that black holes emit radiation raised serious problems of consistency with the rest of physics. I have now resolved these problems, but the answer turned out to be not what I expected.
My father was a research scientist in tropical medicine, so I always assumed I would be a scientist, too. I felt that medicine was too vague and inexact, so I chose physics.
My first popular book, 'A Brief History of Time,' aroused a great deal of interest, but many found it difficult to understand. Time ;History
My goal is simple. It is a complete understanding of the universe, why it is as it is and why it exists at all.
My ideal role would be a baddie in a James Bond film. I think the wheelchair and the computer voice would fit the part.
My three children have brought me great joy.
My wife and I love each other very much. Love, Romance, Marriage & Sex
My work and my family are very important to me. Families, Children & Parenting ;Work, Workers & The Labor Force
No one can resist the idea of a crippled genius.
No one undertakes research in physics with the intention of winning a prize. It is the joy of discovering something no one knew before.
Not only does God play dice, but... he sometimes throws them where they cannot be seen. Religion & God
Nothing cannot exist forever.
Observations indicate that the universe is expanding at an ever increasing rate. It will expand forever, getting emptier and darker.
Obviously, because of my disability, I need assistance. But I have always tried to overcome the limitations of my condition and lead as full a life as possible. I have traveled the world, from the Antarctic to zero gravity. Life
One cannot really argue with a mathematical theorem.
One can't predict the weather more than a few days in advance.
Only black holes of very low mass would emit a significant amount of radiation.
Our minds work in real time, which begins at the Big Bang and will end, if there is a Big Crunch - which seems unlikely, now, from the latest data showing accelerating expansion. Consciousness would come to an end at a singularity. Time ;Work, Workers & The Labor Force
Our population and our use of the finite resources of planet Earth are growing exponentially, along with our technical ability to change the environment for good or ill.
People who boast about their I.Q. are losers.
People won't have time for you if you are always angry or complaining. Time
Perhaps one day I will go into space.
Philosophers have not kept up with modern developments in science. Particularly physics. Science, Mathematics, Engineering & Technology
Science can lift people out of poverty and cure disease. That, in turn, will reduce civil unrest. Science, Mathematics, Engineering & Technology
Science is beautiful when it makes simple explanations of phenomena or connections between different observations. Examples include the double helix in biology and the fundamental equations of physics. Science, Mathematics, Engineering & Technology
Science is increasingly answering questions that used to be the province of religion. Religion & God ;Science, Mathematics, Engineering & Technology
Science is not only a disciple of reason but, also, one of romance and passion. Science, Mathematics, Engineering & Technology
Science predicts that many different kinds of universe will be spontaneously created out of nothing. It is a matter of chance which we are in. Science, Mathematics, Engineering & Technology
Scientists have become the bearers of the torch of discovery in our quest for knowledge. Education, Learning, Knowledge & Training ;Science, Mathematics, Engineering & Technology
So long as the universe had a beginning, we could suppose it had a creator. But if the universe is really completely self-contained, having no boundary or edge, it would have neither beginning nor end: it would simply be. What place, then, for a creator?
Some forms of motor neuron disease are genetically linked, but I have no indication that my kind is. No other member of my family has had it. But I would be in favour of abortion if there was a high risk. Families, Children & Parenting
Some people would claim that things like love, joy and beauty belong to a different category from science and can't be described in scientific terms, but I think they can now be explained by the theory of evolution. Love, Romance, Marriage & Sex ;Science, Mathematics, Engineering & Technology
Some scientists think it may be possible to capture a wormhole and enlarge it many trillions of times to make it big enough for a human or even a spaceship to enter.
Someone told me that each equation I included in the book would halve the sales.
Sometimes I wonder if I'm as famous for my wheelchair and disabilities as I am for my discoveries. Fame
Stem cell research is the key to developing cures for degenerative conditions like Parkinson's and motor neuron disease from which I and many others suffer. The fact that the cells may come from embryos is not an objection, because the embryos are going to die anyway.
Success in creating AI would be the biggest event in human history. Unfortunately, it might also be the last, unless we learn how to avoid the risks. History ;Success ;Science, Mathematics, Engineering & Technology
The cyclic universe theory predicts no gravitational waves from the early universe.
The doctor who diagnosed me with ALS, or motor neuron disease, told me that it would kill me in two or three years.
The fastest manned vehicle in history was Apollo 10. It reached 25,000 mph. History
The human race may be the only intelligent beings in the galaxy.
The media need superheroes in science just as in every sphere of life, but there is really a continuous range of abilities with no clear dividing line. Life ;Science, Mathematics, Engineering & Technology
The missing link in cosmology is the nature of dark matter and dark energy. Nature
The Paralympic Games is about transforming our perception of the world.
The past, like the future, is indefinite and exists only as a spectrum of possibilities. Future
The Planck satellite may detect the imprint of the gravitational waves predicted by inflation. This would be quantum gravity written across the sky.
The radiation left over from the Big Bang is the same as that in your microwave oven but very much less powerful. It would heat your pizza only to minus 271.3*C - not much good for defrosting the pizza, let alone cooking it.
'The Simpsons' appearances were great fun. But I don't take them too seriously. I think 'The Simpsons' have treated my disability responsibly.
The universe is governed by science. But science tells us that we can't solve the equations, directly in the abstract. Science, Mathematics, Engineering & Technology
The universe is not indifferent to our existence - it depends on it.
The usual approach of science of constructing a mathematical model cannot answer the questions of why there should be a universe for the model to describe. Why does the universe go to all the bother of existing? Science, Mathematics, Engineering & Technology
The voice I use is a very old hardware speech synthesizer made in 1986. I keep it because I have not heard a voice I like better and because I have identified with it.
The whole history of science has been the gradual realization that events do not happen in an arbitrary manner, but that they reflect a certain underlying order, which may or may not be divinely inspired. History ;Science, Mathematics, Engineering & Technology
Theology is unnecessary.
Theoretical physics is one of the few fields in which being disabled is no handicap - it is all in the mind.
There are grounds for cautious optimism that we may now be near the end ofthe search for the ultimate laws of nature. Nature
There are no black holes in the sense of regimes from which light can't escape to infinity.
There are plenty of dead scientists I admire, but I can't think of any living ones. This is probably because it is only in retrospect that one can see who made the important contributions.
There are too many accidents that can befall life on a single planet. Life
There could be shadow galaxies, shadow stars, and even shadow people.
There is a real danger that computers will develop intelligence and take over. We urgently need to develop direct connections to the brain so that computers can add to human intelligence rather than be in opposition. Science, Mathematics, Engineering & Technology
There is no heaven or afterlife for broken-down computers; that is a fairy story for people afraid of the dark. Science, Mathematics, Engineering & Technology
There is no physical law precluding particles from being organised in ways that perform even more advanced computations than the arrangements of particles in human brains.
There is no unique picture of reality.
There is nothing bigger or older than the universe.
There's no way to remove the observer - us - from our perceptions of the world.
Throughout history, people have studied pure science from a desire to understand the universe rather than practical applications for commercial gain. But their discoveries later turned out to have great practical benefits. History ;Science, Mathematics, Engineering & Technology
Time can behave like another direction in space under extreme conditions. Time
Time travel used to be thought of as just science fiction, but Einstein's general theory of relativity allows for the possibility that we could warp space-time so much that you could go off in a rocket and return before you set out. Time ;Travel ;Science, Mathematics, Engineering & Technology
Time travel was once considered scientific heresy, and I used to avoid talking about it for fear of being labelled a 'crank.' Time ;Travel
To confine our attention to terrestrial matters would be to limit the human spirit.
To my mathematical brain, the numbers alone make thinking about aliens perfectly rational. The real challenge is to work out what aliens might actually be like. Work, Workers & The Labor Force
Up until the 1920s, everyone thought the universe was essentially static and unchanging in time. Time
Using e-mail, I can communicate with scientists all over the world.
Wagner manages to convey emotion with music better than anyone, before or since. Music, Chants & Rapps
We are all different. There is no such thing as a standard or run-of-the-mill human being, but we share the same human spirit.
We are all now connected by the Internet, like neurons in a giant brain.
We are each free to believe what we want and it is my view that the simplest explanation is there is no God. No one created the universe and no one directs our fate. This leads me to a profound realization. There is probably no heaven, and no afterlife either. We have this one life to appreciate the grand design of the universe, and for that, I am extremely grateful. Religion & God ;Science, Mathematics, Engineering & Technology
We are in danger of destroying ourselves by our greed and stupidity. We cannot remain looking inwards at ourselves on a small and increasingly polluted and overcrowded planet.
We are just an advanced breed of monkeys on a minor planet of a very average star. But we can understand the Universe. That makes us something very special.
We are the product of quantum fluctuations in the very early universe.
We live in a bewildering world.
We lived in a tall, narrow Victorian house, which my parents had bought very cheaply during the war, when everyone thought London was going to be bombed flat. In fact, a V-2 rocket landed a few houses away from ours. I was away with my mother and sister at the time, but my father was in the house. Time ;War & Peace
We must develop as quickly as possible technologies that make possible a direct connection between brain and computer, so that artificial brains contribute to human intelligence rather than opposing it.
We only have to look at ourselves to see how intelligent life might develop into something we wouldn't want to meet. Life
We should seek the greatest value of our action.
We think that life develops spontaneously on Earth, so it must be possible for life to develop on suitable planets elsewhere in the universe. But we don't know the probability that a planet develops life. Life
We think we have solved the mystery of creation. Maybe we should patent the universe and charge everyone royalties for their existence.
What I'd really like to control is not machines, but people.
What was God doing before the divine creation? Religion & God
When one's expectations are reduced to zero, one really appreciates everything one does have.
When we understand string theory, we will know how the universe began. It won't have much effect on how we live, but it is important to understand where we come from and what we can expect to find as we explore.
While physics and mathematics may tell us how the universe began, they are not much use in predicting human behavior because there are far too many equations to solve. I'm no better than anyone else at understanding what makes people tick, particularly women. Women
Why are we here? Where do we come from? Traditionally, these are questions for philosophy, but philosophy is dead.
With genetic engineering, we will be able to increase the complexity of our DNA, and improve the human race. But it will be a slow process, because one will have to wait about 18 years to see the effect of changes to the genetic code.
Women. They are a complete mystery. Women
Work gives you meaning and purpose and life is empty without it. Life ;Work, Workers & The Labor Force
You can't regulate every lab in the world.