When you're thinking about something that you don't understand, you have a terrible, uncomfortable feeling called confusion... Now, is the confusion's because we're all some kind of apes that are kind of stupid working against this, trying to figure out [how] to put the two sticks together to reach the banana and we can't quite make it... So I always feel stupid. Once in a while, though, the sticks go together on me and I reach the banana.

Turbulence is the most important unsolved problem of classical physics.

You see, I get such fun out of thinking that I don't want to destroy this most pleasant machine that makes life such a big kick.

An ordinary fool isn't a faker; an honest fool is all right. But a dishonest fool is terrible!

Fall in love with some activity, and do it! Nobody ever figures out what life is all about, and it doesn't matter.

I love only nature, and I hate mathematicians.

Few people realize the number of things that are possible.