我越是研究染色体，就越意识到它们非凡的行为。

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.

和那些叫喊饥饿的人相比，那么吃饱了自然就快乐；和呼叫寒冷的人相比，那么得到温暖自然就快乐；和患病者相比，那么健康就会快乐；和祸患者相比，那么平安就快乐；和死去的人相比，活着就会快乐。