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Freedom is not merely the opportunity to do as one pleases; neither is it merely the opportunity to choose between set alternatives. Freedom is, first of all, the chance to formulate the available choices, to argue over them - and then, the opportunity to choose.
在量子场论的领域中,真空并非空无一物,而是充满了虚粒子的沸腾大锅。
时间是阻止光线到达我们的东西。
“原则”是“偏见”的另个名称。