Very soon I discovered that if one gets a feeling for no more than a dozen other radiation and nuclear constants, one can imagine the subatomic world…

- Stanislaw Ulam

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

- Stanislaw Ulam

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.

- Stanislaw Ulam

Thoughts are steered in different ways.

- Stanislaw Ulam

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

- Stanislaw Ulam

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

- Stanislaw Ulam

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

- Stanislaw Ulam

I'm an agnostic. Sometimes I muse deeply on the forces that are for me invisible. When I am almost close to the idea of God, I feel immediately estra…

- Stanislaw Ulam

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

- Stanislaw Ulam