Mathematics is no more computation than typing is literature.

The Internet is the world's largest library. It's just that all the books are on the floor.

Defined broadly enough, mathematics encompasses everything.

In the stock market... You can be right for the wrong reasons or wrong for the right reasons.

I think, therefore I laugh.

I used to be surprised and even depressed when I met someone I had admired and discovered him or her to be a jerk or, perhaps worse, rather common. Now I half expect this reaction and even find it a little reassuring, maybe even uplifting. Isn't it amazing that somebody like that could produce such and such.

The once-surprising existence of non-Euclidean models of Euclid's first four axioms can be seen as a sort of mathematical joke.