交换、交易和互换的倾向普遍存在于所有人之中，而在其他动物种族中找不到。
The propensity to truck， barter， and exchange one thing for another is common to all men， and to be found in no other race of animals.
We’ve got to live, no matter how many skies have fallen.
History is a cyclic poem written by time upon the memories of man.
给我们赦免的，是忏悔而不是牧师。