Crash programs fail because they are based on theory that, with nine women pregnant, you can get a baby in a month.

My experiences with science led me to God. They challenge science to prove the existence of God. But must we really light a candle to see the sun?

I have learned to use the word 'impossible' with the greatest caution.

Science does not have a moral dimension. It is like a knife. If you give it to a surgeon or a murderer, each will use it differently.

Basic research is what I am doing when I don't know what I am doing.

It was very successful, but it fell on the wrong planet.

The rocket worked perfectly, except for landing on the wrong planet.

It takes sixty-five thousand errors before you are qualified to make a rocket.

The best computer is a man, and it’s the only one that can be mass-produced by unskilled labor.

Don't tell me that man doesn't belong out there. Man belongs wherever he wants to go - and he'll do plenty well when he gets there.

I believe in an immortal soul. Science has proved that nothing disintegrates into nothingness. Life and soul, therefore, cannot disintegrate into nothingness, and so are immortal.

He responded with one of those looks of pity and amusement I was by now so used to getting, the kind that implied not only was my fly undone, but that there was nothing to see even if it was.

My parents are the coolest of the cool on every single level, and it's because they have a deep appreciation for every moment of their lives.

I may not have married for very sound reasons, but money was the least of them.

If no meant no then every man would die a virgin.

First, say to yourself, 'I'm totally independent of the good or bad opinions of others.' Second: 'I'm beneath no one.' Third: 'I'm fearless in the face of any and all challenges.'

Once sent out, a word takes wings beyond recall.

Once admit that we have the right to inflict unnecessary suffering and you destroy the very basis of human society.

I truly have a great love for an audience, and I used to want to prove it to them by giving them blood.

When curiosity turns to serious matters, it's called research.

The pilot cannot mitigate the billows or calm the winds.