## Authors — U

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- C (775) |
- D (457) |
- E (230) |
- F (448) |
- G (578) |
- H (763) |
- I (57) |
- J (233) |
- K (358) |
- L (527) |
- M (843) |
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- O (153) |
- P (495) |
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- R (508) |
- S (943) |
- T (324) |
- U (26) |
- V (102) |
- W (521) |
- X (6) |
- Y (49) |
- Z (55)

## Quotations by Stanislaw Ulam

Any good idea can be stated in fifty words or less.

In many cases, mathematics is an escape from reality. The mathematician finds his own monastic niche and happiness in pursuits that are disconnected from external affairs. Some practice it as if using a drug. Chess sometimes plays a similar role. In their unhappiness over the events of this world, some immerse themselves in a kind of self-sufficiency in mathematics. (Some have engaged in it for this reason alone.)

— Adventures of a Mathematician, New York, 1976

What exactly is mathematics? Many have tried but nobody has really succeeded in defining mathematics; it is always something else. Roughly speaking, people know that it deals with numbers, figures, with relations, operations, and that its formal procedures involving axioms, proofs, lemmas, theorems have not changed since the time of Archimedes.

… there’s nothing new under the sun — everything can be traced back to Archimedes or even earlier.