人类行为的首要原则是,一个人会做他认为能满足自己欲望的事情。
It is a first principle of human action that a man does what he believes will satisfy his desires.
译文:郁孤台下这赣江的流水,水中不知包含了多少乱世中行人的眼泪。我向西北眺望故都长安,可惜无数青山层层叠叠,遮住了我的视线。