Stanislaw Ulam, the Polish émigré mathematician, liked to say that the first sign of senility is that a man forgets his theorems, the second is that he forgets to zip up, the third sign is that he forgets to zip down.
Categories
Stanislaw Ulam, the Polish émigré mathematician, liked to say that the first sign of senility is that a man forgets his theorems, the second is that he forgets to zip up, the third sign is that he forgets to zip down.