My knowledge of the human psyche is as yet imperfect. Certain areas won't yield to computation.

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.

We're a mess, Kate.

I never thought, 'Oh God, I'm in Prince's shadow.' He'd been performing for years, and he was my teacher.

We must ensure our system of higher education offers world-class quality for a world-class economy.

Just think of something that would be "wonderful" if it were only "possible". Then set out to make it possible.

From Santi's earthly tomb with demon's hole, 'Cross Rome the mystic elements unfold. The path of light is laid, the sacred test, Let angels guide you on your lofty quest.

I had accumulated some capital and was at an age at which I was interested in generating income. But even though I was risk averse, I was interested in growth stocks.

Despite all the variables and advise, like love and marriage it seemed to me that learning to cast ought to be a lot easier than it was.

We really think health savings accounts were kind of invented in Indiana.

I feel like I'm in the right profession.

Everything is the product of one universal creative effort. There is nothing dead in Nature.