Man should humbly face nature.

Teaching is my greatest work of art.

老年人相信每一件事物；中年人猜疑每一件事物；青年人什么都懂。

The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.

Man is the only creature who refuses to be what he is.

最好的角色真实得仿佛能从书页中走出来。