保持简单，愚蠢。

Freedom is not merely the opportunity to do as one pleases; neither is it merely the opportunity to choose between set alternatives. Freedom is, first of all, the chance to formulate the available choices, to argue over them - and then, the opportunity to choose.

可持续发展不是选择，而是煤炭行业的必然要求。

Every challenge is an opportunity in disguise.

I think the most important thing in life is to be true to yourself.