The purpose of life is to conjecture and prove.
It will be another million years, at least, before we understand the primes.
A mathematician is a device for turning coffee into theorems.
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.
You don't have to believe in God, but you should believe in The Book.
There'll be plenty of time to rest in the grave.