Logic has virtually nothing to do with the way we think.

Images of the world are Renormalization Group fixed points.

The world is continuous, but the mind is discrete.

I am accustomed, as a professional mathematician, to living in a sort of vacuum, surrounded by people who declare with an odd sort of pride that they are mathematically illiterate.

The world is a very complicated place, as babies know.

I think that mathematics can benefit by acknowledging that the creation of good models is just as important as proving deep theorems.

The extreme possibilities are the most illuminating.

The most important expression of love is self-love – it should precede loving others.

Is there any thinking animal like man?

The awareness of the damage done by severe mental illness—to the individual himself and to others—and fears that it may return again play a decisive role in many suicides

My father wasn't much for show business. He was an insurance man - very well-liked, very warm. He had a lot of friends.

You have to think with the heart.

I never really marketed myself, so each job I was given was a new marketing tool, and that would be the way I marketed myself.

I just never did buy this idea that you have to live in Los Angeles to be an actor. I didn't see that as a requirement in my job description.

Brains are far more important than money or connections. Everyone and anyone can create a business out of their bedroom.

All the dangers in our world are like a blessed wake up call. They tell us to live life NOW... not tomorrow, not when the children grow up, not when we retire... but NOW.

If I can get a day to myself, I won't answer the phone, I'll read or go for a walk. Simple, basic things. People think there's always time to do that but there isn't. Life is short.