The best way to create interest in a subject is to render it worth knowing, which means to make the knowledge usable.

The essence of mathematics lies in its freedom.

Use， do not abuse...Neither abstinence nor excess ever renders man happy.

Most of what makes a book 'good' is that we are reading it at the right moment for us.

商业中最危险的话是"我们一直都是这么做的"。

译文：虚心又不骄傲，是福报的根本所在。傲气满怀、缺乏宽容的人，不会有什么远大的根器，纵使发达，也不会长久。

领导力在于激励他人在看到障碍的地方看到可能性。