A key insight in learning theory is that the complexity of a hypothesis class is crucial for generalization.

故事不是用来阅读的信，而是一扇等待被打开的门。

The real romance is out ahead and yet to come. The computer revolution hasn't started yet. Don't be misled by the enormous flow of money into bad defacto standards for unsophisticated buyers using poor adaptations of incomplete ideas.

语出汉·桓宽《盐铁论·刺议》。能够与下面人商量计策的领导，是不会失策的；能发挥大家作用的人，是不会不成功的。

预测未来的最好方法就是设计它。

The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.