追求完美是优秀的敌人。

Behavior is not just a reaction, it's a communication.

The first fruit of this imagination - and the first lesson of the social science that embodies it - is the idea that the individual can understand his own experience and gauge his own fate only by locating himself within his period, that he can know his own chances in life only by becoming aware of those of all individuals in his circumstances.

一个文明的真正衡量标准是它如何对待最弱的成员。