Sustainability isn't a buzzword; it's the only way forward for mining.

史记

The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.

赏赐并不能让人欢喜，责罚也不能让人畏惧。 

根据他的长处而使用他，就是根据他的长处而制服他。