The value of a problem is not so much coming up with the answer as in the ideas and attempted ideas it forces on the would be solver.

Very often in mathematics the crucial problem is to recognize and discover what are the relevant concepts; once this is accomplished the job may be more than half done.

If you can't write a book, write a chapter. If you can't do that, write a page, a sentence or a word. For it is from a single word that books are made.

The government can make laws but they can’t make people live by these laws

how much he loved being alone except when he didn't, except when it got to be too much?

Marriage has many pains but celibacy has no pleasures.

I must govern the clock, not be governed by it.

Start with what is right rather than what is acceptable.

I try to avoid Twitter. I occasionally can't resist the siren call of email.

By my teaching I hope to inspire you to personal activity and to present your vision.

I end up not buying a lot of things, because I find them ridiculous.

It is better to be small, colorful, sexy, careless, and peaceful.