I would rather be right than rigorous.

I don't think the human race will survive the next thousand years, unless we spread into space. There are too many accidents that can befall life on a single planet. But I'm an optimist. We will reach out to the stars.

Women. They are a complete mystery.

The development of full artificial intelligence could spell the end of the human race.

Once I wept for I had no shoes. Then I met a man with no feet, so I took his shoes. I mean, it wasn't as if he was going to need them.

To my mathematical brain, the numbers alone make thinking about aliens perfectly rational.

Physics as we know it will be over in six months - Max Born