The first sign of senility is that a man forgets his theorems, the second sign is that he forgets to zip up, the third sign is that he forgets to zip… - Stanisław Ulam

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The first sign of senility is that a man forgets his theorems, the second sign is that he forgets to zip up, the third sign is that he forgets to zip down.

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About Stanisław Ulam

Stanisław Marcin Ulam (April 13, 1909 – May 13, 1984) was a Polish-American mathematician who participated in the Manhattan Project and proposed the Teller–Ulam design of thermonuclear weapons. He also invented nuclear pulse propulsion and developed a number of mathematical tools in number theory, set theory, ergodic theory, and algebraic topology.

Also Known As

Native Name: Stanisław Marcin Ulam
Alternative Names: Stanislaw Ulam
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Additional quotes by Stanisław Ulam

Thanks to my memory, which enabled me to quote Latin and to discuss Greek and Roman civilization, it became obvious to some of my colleagues in other fields that I was interested in things outside mathematics. This lead quickly to very pleasant relationships.

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