If you spend too much time thinking about a thing, you'll never get it done.

If everybody is thinking alike, then somebody isn't thinking.

Character is higher than intellect...A great soul will be strong to live, as well as strong to think.

Anyone who has ever looked into the glazed eyes of a soldier dying on the battlefield will think hard before starting a war.

The universe is a lot more complicated than you might think even if you start from a position of thinking that its pretty damn complicated to begin with.

I do not paint the things I see, I paint what I think.

We begin to think cosmically.

The scientists from Franklin to Morse were clear thinkers and did not produce erroneous theories. The scientists of today think deeply instead of clearly. One must be sane to think clearly, but one can think deeply and be quite insane.

Thinking too little about things or thinking too much both make us obstinate and fanatical.

I never looked at the consequences of missing a big shot…when you think about the consequences you always think of a negative result.

Man is a reed, the weakest of nature, but he is a thinking reed.

I'd like to think I am taking people on a journey; I am not just entertaining people, but giving them something to think about when they leave.