"Poetry is the music of the soul, and, above all, of great and feeling souls."

History is a nightmare from which I am trying to awake.

Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost.

The more constraints you have, the more creative you become.

"The most important single aspect of software development is to be clear about what you are trying to build."