Man is a creature that can get accustomed to anything, and I think that is the best definition of him.
There is nothing in the world common to man, that man cannot do.
If a child from an Amazonian hunter-gatherer tribe comes to Boston, is raised in Boston, that child will be indistinguishable in language capacities from my children growing up here, and vice versa.
We need to have a modicum of faith in people's common sense, creativity and will to survive and prosper even in the face of great difficulties and obstacles. If people could keep society running in the aftermath of the Black Death, they could keep it running after the U.S. government defaulted on its debt.
The becoming of man is the history of the exhaustion of his possibilities.
I am afforded a bit of easy wonderment in relative comfort as to how humans have lasted so long. Climate- and geography-wise, the planet seems to have little use for us.
Man is not a machine that can be remodelled for quite other purposes as occasion demands, in the hope that it will go on functioning as regularly as before but in a quite different way. He carries his whole history with him; in his very structure is written the history of mankind.
Without civilization, we would not turn into animals, but vegetables.
Man is going to be displaced altogether as a specialist by the computer. Man himself is being forced to reestablish, employ, and enjoy his innate "comprehensivity.
Even Fuller would have been surprised at how fast this began to come to pass.
The terror of the atom age is not the violence of the new power but the speed of man's adjustment to it, the speed of his acceptance.
Human nature is almost unbelievably malleable, responding accurately and contrastingly to contrasting cultural conditions.
At age three, if you have a still-growing brain, it's a human behavior. In chimps, by age three, the brain is formed over 90 percent. That's why they can cope with their environment very easily after birth - faster than us, anyway. But in humans, we continue to grow our brains. That's why we need care from our parents.
We have changed our environment more quickly than we have learned how to change ourselves.
Animals behave in set patterns, which is why we are able to hunt and kill them. Only man has the capacity to consciously alter his behavior, to improvise and overcome the weight of routine and habit.
If there was an observer on Mars, they would probably be amazed that we have survived this long.
All of the biggest technological inventions created by man - the airplane, the automobile, the computer - says little about his intelligence, but speaks volumes about his laziness.
There is certainly a longstanding idea within western culture that civilization is only a thin veneer. As soon as something happens, say a war or a natural disaster or an epidemic like we're going through right now, the worst comes out in each of us.
How quickly do we grow accustomed to wonders. I am reminded of the Isaac Asimov story Nightfall, about the planet where the stars were visible only once in a thousand years. So awesome was the sight that it drove men mad. We who can see the stars every night glance up casually at the cosmos and then quickly down again, searching for a Dairy Queen.
When I am at a dinner table, I love to ask everybody, 'How long do you think our species might last?' I've read that the average age of a species, of any species, is about two million years. Is it possible we can have an average life span as a species? And do you picture us two million years more or a million and a half years, or 5,000?
Sometimes I think opposable thumbs were invented so teenage girls could use text messaging.
It's a tribute to the human brain that anyone is able to function out there on television in a talk situation that is entirely artificial.
Flying in space is risky. It will never be safe, and the best thing we can do is manage those risks. It's important for people, for human beings, to be in space because they're adaptable and because they're not pre-programmed software that can go off and do tasks that are appropriate for machines.
In general, the human race is still a young organism.
But nature - that is, biological evolution - has not fitted man to any specific environment. On the contrary, ... he has a rather crude survival kit; and yet -this is the paradox of the human condition - one that fits him to all environments. Among the multitude of animals which scamper, fly, burrow and swim around us, man is the only one who is not locked into his environment. His imagination, his reason, his emotional subtlety and toughness, make it possible for him not to accept the environment but to change it.
It was kind of a beautiful day, finally real summer in Indianapolis, warm and humid - the kind of weather that reminds you after a long winter that while the world wasn't built for humans, we were built for the world.