I think that’s the single best piece of advice: constantly think about how you could be doing things better and questioning yourself.

道之外没有其他事物，事物之外也没有道。

In examinations the foolish ask questions that the wise cannot answer.

死者既已安葬,活着的人就不要长久地哭泣,而应该尽快做事,每个人都做自己能做的事,并用来使大家互利。