The best criticism of art is more art.

夏天的飞鸟，飞到我窗前唱歌，又飞去了。秋天的黄叶，他们没有什麼可唱的，只是叹息一声，飞落在那里。

Reinforcement is the central factor in the acquisition of new behavior patterns.

In individuals， insanity is rare；but in groups， parties， nations， and epochs， it is the rule.

你经历的越多，你学到的就越多。