译文：天气不寒冷，地面就不会被冻住，人没有到伤心的时候就不会流泪。赏析：人的言行总是随着外物的变化而变化。不以物喜不以己悲，其实很难做到的。

The most important ability of a product manager is to turn yourself into a fool.

The best fertilizer is the farmer's shadow.

Government, even in its best state, is but a necessary evil; in its worst state, an intolerable one.

化学是逻辑的诗，也是诗的逻辑。

"The only way to get rid of a temptation is to yield to it."