Life is not fair; get used to it.

A sense of responsibility is the mark of a noble character.

A good chemist is a lazy chemist—always looking for the easiest way to do things.

自身无灾无病，感受不到快乐，等到生病卧床，才了解到无灾无病的快乐；家中平安无事，感受不到快乐，等到祸事临头，才体会到平安无事的快乐。