No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.

我没时间担心谁不喜欢我。

我们对宇宙了解得越多，就越意识到我们还有多少尚未发现的东西。

勇敢追求让你灵魂燃烧的事物。

奖赏不正确，没有鼓励作用；施刑不正确，也起不到惩戒作用。