A mathematician is a device for turning coffee into theorems.
Here I am: My brain is open.
Every human activity, good or bad, except mathematics, must come to an end.
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 has the Big Book, the beautiful proofs of mathematical theorems are listed here.
Mathematics is the surest way to immortality. If you make a big discovery in mathematics, you will be remembered after everyone else will be forgotten