The rule, or measuring rod, which the behaviorist puts in front of him always is: Can I describe this bit of behavior I see in terms of "stimulus and response"?

Virtues are acquired through endeavor, which rests wholly upon yourself.

重要的不是目的地，而是旅程。

"I write to escape the game, but I always end up finding it."

——从浙江观潮返上海后题词，1916年9月15日

喜欢攻击别人的人，常危及自身，如果自己甘心当愚者，却能恰恰成就自保其身的智慧；喜好自我吹嘘的人，被众人取笑，自以为得计耍小聪明，却恰恰表现出他自欺欺人的愚昧。