For my confirmation, I didn't get a watch and my first pair of long pants, like most Lutheran boys. I got a telescope. My mother thought it would make the best gift.

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.

Sharing will enrich everyone with more knowledge.

Happiness is something that multiplies when it is divided.

Making love to a woman is like buying real estate: location, location, location.

Some paint comes across directly onto the nervous system and other paint tells you the story in a long diatribe through the brain.

People think I must have been turning cartwheels on the night I sealed the movie deal - which was only two days after sealing the book deal - but I was really quite terrified.

One day we'll look back we'll smile and we'll laugh,but right now we just cry. Cuz it's so hard to say good-bye.

That is the difference between a good song and a bad song lyrically - if you can listen to it and put yourself in that place, or see that person in that place, normally it is a pretty good song.

As a kid, I think people would have described me more as a goofball, or being energetic. But I always loved parodies; I loved spoofing things.

How can we be so confident that we are correct about the religion of Islam that it is really different in this insidious way and people 50 years from now, people aren't going to back on.

My musical heroes are people like Pete Seeger and Woody Guthrie who wrote and sang real songs for real people; for everyone, old, young, and in between.