The joy of discovery in mathematics is like solving a puzzle that the universe has left for us.

The Government of the United States is a definite Government, confined to specified objects. It is not like the state governments, whose powers are more general.

领导力不在于掌控，而在于照顾你所负责的人。

我认为一个女人最重要的东西——当然，除了才华之外——是她的发型师。

不耽误农业生产的季节，粮食就会吃不完；密网不下到池塘里，鱼鳖就会吃不完；按一定的季节入山伐木，木材就会用不完。