Frank Drake Quotes

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.

I think that it would be unwise of us not to believe that there is life outside of us, intelligent life. And so I do believe in aliens.

[In the Universe it may be that] Primitive life is very common and intelligent life is fairly rare. Some would say it has yet to occur on Earth.

I believe that there may be intelligent life on other planets.

The human race may be the only intelligent beings in the galaxy.

How can the human race be, like, the only living form in the universe? There have to be other life forms out there. I believe it.

Up to this day, there has been no proof of the existence of any intelligence other than the human.

It would be selfish to believe that we are the only intelligent life in the universe.

I'm sure the universe is full of intelligent life. It's just been too intelligent to come here.

I don't see why there is no intelligent alien life in the universe.

Since the universe must contain millions of appropriate planets, consciousness in some form - but not with the paired eyes and limbs, and the brain built of neurons in the only example we know - may evolve frequently. But if only one origin of life in a million ever leads to consciousness, then Martian bacteria most emphatically do not imply Little Green Men.

I suspect there could be life and intelligence out there in forms that we can't conceive. And there could, of course, be forms of intelligence beyond human capacity-beyond as much as we are beyond a chimpanzee.

Chances are, when we meet intelligent life forms in outer space they're going to be descended from predators.

I think more and more scientists are becoming convinced that it's very likely that life forms of some kind exist all around the universe not so far from us.

Thar's only two possibilities: Thar is life out there in the universe which is smarter than we are, or we're the most intelligent life in the universe. Either way, it's a mighty sobering thought. (Porkypine)

I do believe there is life in outer space. Mathematically, there has to be, and if you believe as I do that there is a creator of the universe, then how can we be so arrogant to believe he created life here and nowhere else?

No astrophysicist would deny the possibility of life. I think we're not creative enough to imagine what life would be like on another planet. Show me a dead alien. Better yet, show me a live one!

I think there must be some other life forms, even if they're microscopic.

I don't think we are the only planet that has life.

There are so many possibilities of life out there that an alien doesn't have to have green, long tentacles. They can be very similar to us.

The universe is large and old, and the ingredients for life as we know it are everywhere, so there's no reason to think that Earth would be unique in that regard. Whether of not the life became intelligent is a different question, and we'll see if we find that.

People quite often think of the question 'Are we alone in the universe?' in terms of other civilizations out there: life forms that have reached at least our level of technological development.

If we do discover more than one type of life on Earth, we can be fairly certain that the universe is teeming with it, for it would be inconceivable that life started twice here but never on all the other earth-like planets.

The surest sign that intelligent life exists elsewhere in the universe is that it has never tried to contact us.

It is probable that extraterrestrial life existed somewhere in the universe.... I am not sufficiently conceited to think that my sun is the only one with a family of planets. I, for one, am not so immensely impressed by the success we are making of our civilization here that I am prepared to think we are the only spot in this immense universe which contains living, thinking creatures, or that we are the highest type of mental and physical development which has ever appeared in the vast compass of space and time.