We are what we repeatedly do. Excellence, then, is not an act, but a habit.

A long habit of not thinking a thing wrong gives it a superficial appearance of being right.

What can be said at all can be said clearly; and whereof one cannot speak thereof one must be silent.

成功是对任何曾经怀疑你的人最好的报复。

社会正义的首要组成部分是全人类都有足够的食物。