The human understanding, when it has once adopted an opinion, draws all things else to support and agree with it.
 人类的理解一旦采纳了一个观点,就会倾向于将其他事物引向支持和一致。
Mathematics is not a spectator sport.
不要追逐风,要造风车。
我们需要的书是那些能读懂我们的书。