做出伟大工作的唯一方法是热爱你所做的事情。

Duty is the most sublime word in our language. Do your duty in all things. You cannot do more. You should never wish to do less.

The writer’s challenge is to find the universal in the particular.

A proof is a device for convincing someone else that a mathematical statement is true.

创业要找最合适的人，不一定要找最成功的人。