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The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.
我认为目标永远不应该容易,它们应该迫使你努力,即使当时让你感到不舒服。
The statesman, who should attempt to direct private people in what manner they ought to employ their capitals, would not only load himself with a most unnecessary attention but assume an authority which could safely be trusted, not only to no single person, but to no council or senate whatever, and which would nowhere be so dangerous as in the hands of a man who had folly and presumption enough to fancy himself fit to exercise it.
一个理论的优雅不仅在于其数学表述,还在于其在一个统一框架下连接不同现象的能力。