There are three signs of senility. The first sign 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.

God may not play dice with the universe, but something strange is going on with the prime numbers.

Television is something the Russians invented to destroy American education.

There'll be plenty of time to rest in the grave.

Every human activity, good or bad, except mathematics, must come to an end.

It will be another million years, at least, before we understand the primes.

Mathematics is not yet ready for such problems.