For many years I was the youngest among my mathematical friends. It makes me melancholy to realize that I now have become the oldest in most groups of scientists.

Knowing what is big and what is small is more important than being able to solve partial differential equations.

Whatever is worth saying, can be stated in fifty words or less.

I am turned off when I see only formulas and symbols, and little text.

It is still an unending source of surprise for me how a few scribbles on a blackboard or on a piece of paper can change the course of human affairs.

Thoughts are steered in different ways.

The infinite we shall do right away. The finite may take a little longer.

The mathematicians know a great deal about very little and the physicists very little about a great deal.

It is most important in creative science not to give up. If you are an optimist you will be willing to "try" more than if you are a pessimist.

What exactly is mathematics? Many have tried but nobody has really succeeded in defining mathematics; it is always something else.

Do not lose your faith. A mighty fortress is our mathematics. Mathematics will rise to the challenge, as it always has.

Henry narrowed his eyes at me. "You going somewhere?""Lacrosse field trip, " I said. "I enjoy whacking the hell out of people with mallets.

Although the principle of equality has always been self-evident, it has never been self-executing.

A systemic cleansing and detox is definitely the way to go after each holiday. It is the key to fighting high blood pressure, heart disease, cancer, and other health-related illnesses.

The pagans do not know God, and love only the earth. The Jews know the true God, and love only the earth. The Christians know the true God, and do not love the earth.

I am a very mediocre intellect, at best, and I am smarter than most people I know - and that terrifies me.

There was a terribly ghastly silence. There was a terribly ghastly noise. There was a terribly ghastly silence.

If you ask anyone, what is morality based on? These are the two factors that always come out: One is reciprocity, … a sense of fairness, and the other one is empathy and compassion.

Sooner or later... one has to take sides. If one is to remain human.

I was homeless and I was in San Diego and I started singing in a local coffee shop and people started coming to hear me sing.

The most important benefit of population size and growth is the increase it brings to the stock of useful knowledge. Minds matter economically as much as, or more than, hands or mouths.