君主是臣子的纲常，父亲是儿子的纲常，丈夫是妻子的纲常

理解绘画的唯一方法是长时间地观看它。

The test of a first-rate intelligence is the ability to hold two opposed ideas in the mind at the same time, and still retain the ability to function.

墙是城市的皮肤。

It is the preoccupation with possessions， more than anything else， that prevents us from living freely and nobly.