A mathematician is a device for turning coffee into theorems.

Property is a nuisance.

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

A mathematician is a device for turning coffee into thereoms.

Television is something the Russians invented to destroy American education.

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.