To lose one parent may be regarded as a misfortune; to lose both looks like carelessness.

创新既需要勇气，也需要耐心。

Philosophy is a battle against the bewitchment of our intelligence by means of language.

变化是必然的。和平之后是动荡；恶人的离去之后是他们的回归。

我们的智慧来自于我们的经验，而我们的经验来自于我们的愚蠢。