银行的存在是因为它们有助于缓解信息不对称造成的问题。

译文：人能克制自己的欲望就没有灾祸，做事不欺瞒别人就会睡得安稳。赏析：欲望太多，总有得不到的时候，得不到就会不择手段，肆意妄为，从而给自己带去灾祸。靠欺骗的方式立身处世的人将失去众人的信任，最终将无法在社会上立足。

The future of coal depends on balancing economic growth with environmental care.

The function of mental processes is to mediate between the needs of the organism and the demands of the environment.

I always say, "If you stay ready, you don't have to get ready."

世事犹如书籍，一页页被翻过去。人要向前看，少翻历史旧账。