The essential function of art is moral. But a passionate, implicit morality, not didactic. A morality which changes the blood, rather than the mind.

"Regulation is necessary, but too much can be harmful."

自然万物发展变化的规律是：发展到尽头，就会走向反面；发展到极盛之后，就会趋于衰落。

君子有三种事应该加以警戒：年轻的时候，血气还没有固定，力戒贪恋女色；到了壮年时期，血气正旺盛，力戒逞强好斗；到了老年时期，血气已经衰弱，力戒贪得无厌。

"The most important thing is to stay courageous."