Robert Baldwin Ross

Guided only by their feeling for symmetry, simplicity, and generality, and an indefinable sense of the fitness of things, creative mathematicians now, as in the past, are inspired by the art of mathematics rather than by any prospect of ultimate usefulness.

All the great Shakespeare plays are about killing. 'Alas, poor Yorick,' that's about death. And in 'Romeo and Juliet' everyone up ends up dying. The greatest dramas in the world are all about sex, violence and death.