Mathematics is not a spectator sport.

看得越多，看到的就越多。

以这样奢侈的国君，去统治那些爱好奢侈的臣民，想要国家不动乱，是不可能的。 

I constantly see people rise in life who are not the smartest, sometimes not even the most diligent, but they are learning machines. They go to bed every night a little wiser than they were when they got up and boy does that help, particularly when you have a long run ahead of you.

理性是，也应该只是激情的奴隶，永远不能假装具有其他职责，而只能用于服务和服从它们。