In individuals， insanity is rare；but in groups， parties， nations， and epochs， it is the rule.

石材开采的创新必须始终在效率与可持续性之间取得平衡。

知道自己不知道什么比聪明更有用。

We are all cut from the same genetic cloth, and that cloth was woven in Africa.

I don't need to be fixed. I'm not broken.

Money is like manure， its only good if you spread it around.