Behavior is determined by the current stimulus situation and past reinforcement history.

The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.

在经济学中，就像在生活中一样，答案往往比最初看起来更加微妙。

I'm just trying to be the best I can be.

Stay hungry, stay foolish, but always stay true to yourself.

你不必完美无缺也能令人惊叹。

The whole conviction of my life now rests upon the belief that loneliness, far from being a rare and curious phenomenon, peculiar to myself and to a few other solitary men, is the central and inevitable fact of human existence.

把你的手放在滚热的炉子上一分钟，感觉起来像一小时。坐在一个漂亮姑娘身边整整一小时，感觉起来像一分钟。这就是相对论。