Love is like pi - natural, irrational, and very important.

Pure mathematics is the world's best game. It is more absorbing than chess, more of a gamble than poker, and lasts longer than Monopoly. It's free. It can be played anywhere - Archimedes did it in a bathtub.

A mathematician is a blind man in a dark room looking for a black cat which isn't there.

Arithmetic is where numbers fly like pigeons in and out of your head.

Mathematics is like checkers in being suitable for the young, not too difficult, amusing, and without peril to the state.

Mathematics is a game played according to certain simple rules with meaningless marks on paper.

Mathematics may be defined as the subject in which we never know what we are talking about, nor whether what we are saying is true.