You don't have to believe in God, but you should believe in The Book.

A mathematician is a device for turning coffee into theorems.

Property is a nuisance.

Here I am: My brain is open.

I know numbers are beautiful. If they aren't beautiful, nothing is.

Végre nem butulok tovább (I've finally stopped getting dumber).

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.