I'll tell you once, and I'll tell you again. There's always a prime between n and 2n.
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.
Finally I'm becoming stupider no more.
[ ?] It’s like asking why is ’s Ninth Symphony beautiful. If you don't see why, someone can't tell you. I know numbers are beautiful. If they aren't beautiful, nothing is.
God may not play dice with the universe, but something strange is going on with the prime numbers.
I hope we'll be able to solve these problems before we leave.
Television is something the Russians invented to destroy American education.
