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"I am free, no matter what rules surround me. If I find them tolerable, I tolerate them; if I find them too obnoxious, I break them. I am free because I know that I alone am morally responsible for everything I do."
A mathematician's work is never done; there are always new questions to explore and new mysteries to uncover.
在亚马逊的经营上,有三大想法我们已经坚持了18年,它们是亚马逊成功的原因:客户至上、创新和耐心。