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You even harvest the whole world, if no one to share with you, you will feel sad.
如果你不能理解某人为什么要做某事,那么看看他们行为的后果,不管他们可能是什么,然后从他们的后果中推断出动机。
实验室是一个失败只是进步的另一个词的地方。
The world is full of obvious things which nobody by any chance ever observes.
The reason why men enter into society is the preservation of their property.
Economic theory provides the tools, but real-world testing refines them.