"The only thing we have to decide is what to do with the time that is given us."

The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt; and the profoundest wisdom, to know when it ought to be resisted, and when it be obeyed.

只有充分体验痛苦，我们才能从中痊愈。

我能计算天体的运动，却无法计算人们的疯狂。