Tragedy is when I cut my finger. Comedy is when you walk into an open sewer and die.

The future is not a result of choices among alternative paths offered by the present, but a place that is created—created first in the mind and will, created next in activity.

A good algorithm is like a sharp knife—it does exactly what it is supposed to do with a minimum of effort.

如果够真诚我应该告诉你，我现在依然阅读童话，而且它们是我最爱的读物。