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穷人并非不理性;他们和任何人一样理性,但他们在非常不同的约束下行动。
The farmer is the only man in our economy who buys everything at retail, sells everything at wholesale, and pays the freight both ways.
The spirit of moderation should also be the spirit of the lawgiver.
在理论计算机科学的领域里,我们常常发现最深刻的见解来自于最简单的想法。