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The most important single central fact about a free market is that no exchange takes place unless both parties benefit.

The only thing that can make you successful is hard work.

最好的故事是提出的問題多于解答的故事。

The biggest weapon on the court is your mind.

過去總是在變化。它不是固定的。過去并不穩定。

"In the realm of science, every question answered leads to a dozen more waiting to be explored."

心理學必須是一門描述的科學，而非解釋。