Fear is the main source of superstition， and one of the main sources of cruelty. To conquer fear is the beginning of wisdom， in the pursuit of truth as in the endeavour after a worthy manner of life.

Modularity based on abstraction is the way things ought to be done.

"Art is not a mirror held up to reality but a hammer with which to shape it."

神经病就是既不肯听劝又不肯换个话题。