Beauty is not an end in itself, but the result of a perfect solution to a problem.

The Lisp language is designed to be extensible, and it is easy to add new features to it.

挑战是创新和成长的机遇。

The true spirit of delight, the exaltation, the sense of being more than Man, which is the touchstone of the highest excellence, is to be found in mathematics as surely as in poetry.

"Books are the keys to unlocking our empathy."

Leadership is action, not position.

Music is the bridge between hearts.