球场上最强大的武器不是正手或反手——而是你的头脑。

Science is not just about facts; it's about asking the right questions.

The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.

译文：喝醉后控制不住情绪胡言乱语，醒来后就会后悔，健康的时候不注意调养生息，等到生病的时候就会后悔。赏析：物极必反，做任何事都要有个尺度，同时要做到防患于未然，否则就会发生祸患。