Better to choose the freedom of poverty than the slavery of wealth.

In mathematics, the art of proposing a question must be held of higher value than solving it.

Train people well enough so they can leave, treat them well enough so they don't want to.

解释：对会带来灾祸的事物不喜欢，就不会招致灾祸。

人们为了被爱，会去爱别人。