当悲伤来临的时候，不是单个来的，而是成群结队的。

You’ll get 10x better results by elevating good behavior rather than punishing bad behavior， especially in children and animals.

I quite agree with them that it is not an ennobling experience. Poverty entails fear, and stress, and sometimes depression; it means a thousand petty humiliations and hardships. Climbing out of poverty by your own efforts, that is indeed something on which to pride yourself, but poverty itself is romanticised only by fools.