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.
过去总是在我们的生活中存在，塑造我们是谁以及我们如何看待世界。
Every challenge in the dairy industry is an opportunity to innovate and grow.
要记住，人之所以走入迷途，并不是由于他的无知，而是由于他自以为知。
The only way to deal with the future is to function efficiently in the present.
The writer must be a witness to history, even if history ignores him.
