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.
你必须说，我是那个要做出改变的人。
A man of genius makes no mistakes. His errors are volitional and are the portals of discovery.
The void is as important as the full in artistic creation.
The hour of departure has arrived，and we go our separate ways，I to die，and you to live。Which of these two is better only God knows.
一本好书是我生命中的一个事件。
世间没有什么能抵消春天的忧愁，不如对着苍天痛哭一场作罢。
"History is not just a record of events; it's a tapestry of human emotions and choices."