The best life is the one in which the creative impulses play the largest part and the possessive impulses the smallest.

At first it seems obvious, but the more you think about it the stranger the deductions from this axiom seem to become; in the end you cease to understand what is meant by it.

A man of Seville is shaved by the Barber of Seville if and only if the man does not shave himself. Does the barber shave himself?

As men begin to grow civilized, they cease to be satisfied with mere taboos.

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.

Mathematics is only the art of saying the same thing in different words.

Philosophy is that part of science which at present people chose to have opinions about, but which they have no knowledge about. Therefore every advance in knowledge robs philosophy of some problems which formerly it had ...and will belong to science.