Give fear no hold on you. Keep sinews loose and senses open, ready at every instant to flow with the rush of action.

Anybody can find infinite Mandelbrot figures in his navel.

I have yet to see any problem, however complicated, which, when you looked at it in the right way, did not become still more complicated.

We live with our archetypes, but can we live in them?

The single definition of government I've ever seen that makes sense is that it's the organization which claims the right to kill people who won't do what it wants.

A man isn't really alive till he has something bigger than himself and his own little happiness, for which he'd gladly die.

Timidity can be as dangerous as rashness.

A fanatic is a man who, when he's lost sight of his purpose, redoubles his effort.

He had seen too much of the cosmos to have any great faith in man's ability to understand it.

If we knew exactly what to expect throughout the Solar System, we would have no reason to explore it.

What five books would I like to be remembered for? Well... Tau Zero, I like that one especially. It was somewhat of a tour de force, and I think it got across what I was trying for.

Without music, life would be a blank to me.

What I mean by that is that the point of life, as I see it, is not to write books or scale mountains or sail oceans, but to achieve happiness, and preferably an unselfish happiness.

The money that we make from the company goes into The Body Shop Foundation, which isn't one of those awful tax shelters like some in America. It just functions to take the money and give it away.

Cling to thy native land, for it is the land of thy fathers?

I have a duty to protect the Executive Branch from legislative encroachment.

Good luck reaches farther than long arms.

You get one life. I'm going to embrace mine.

My sense of style is an old Polo shirt, jeans and, unfortunately for the longest time, white running shoes, which was not attractive. The one thing I've learned about clothes is to ask a girl.

How often a mother initiates a conversation with her child is not predictive of the language outcomes - what matters is, if the infant initiates, whether the mom responds.

I've been very clear. I won. I didn't commit the crime.