"Science is a way of thinking much more than it is a body of knowledge."

Do not use power to suppress opinions you think pernicious, for if you do the opinions will suppress you.

人们常只想到自己的需要，而没考虑自己的能力。

Quality is not an act, it is a habit.

I don't think of myself as a celebrity. I think of myself as an actor who's had some success.

The process of grouping, of organization, is not arbitrary but follows definite laws.