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To be free is not to have the power to do anything you want, but to have the power to do what is right.
NP中的每个问题都可以归约为可满足性问题,这是计算复杂性理论的基石。
没有“悲哀”提供平衡,“愉快”一词就会失去意义。
La revolución es como la bicicleta, si no avanzas se cae.
Any sufficiently advanced technology is indistinguishable from magic.