你最好别吃了饭不付钱就跑……那些为了每小时三块钱辛苦工作的人不得不替你付账。
思维法则的有效性不依赖于它们所应用对象的性质。
There are some things one remembers even though they may never have happened.
The poor are not irrational; they are just as rational as anyone else, but they operate under very different constraints.