所以君子努力做事就会日渐强大，安于嗜欲就日渐苟且，恭敬庄重就日益繁盛。 

The world is so unhappy because it is ignorant of the true self. Man's real nature is happiness. Happiness is inborn in the true self. Man's search for happiness is an unconscious search for his true self.

食品体系必须发展以满足不断增长的人口需求。