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Mental phenomena are best understood in terms of their functions.

"The most important thing in empirical work is to be clear about the question you are trying to answer."

You have to be able to laugh at yourself, or you'll never make it in this business.

向高處攀登的奮斗本身足以充實(shí)一個(gè)人的心靈。必須想象西西弗斯是幸福的。

When you want to help people, you tell them the truth. When you want to help yourself, you tell them what they want to hear.