Quantum cryptography doesn't rely on the difficulty of mathematical problems, but on the fundamental laws of physics.
量子密码学不依赖于数学问题的难度，而是依赖于物理学的基本定律。
War is an ugly thing， but not the ugliest of things: the decayed and degraded state of moral and patriotic feeling which thinks that nothing is worth a war， is much worse.
我回首前尘往事，犯下重罪的小笨蛋，我想跟他沟通让他明白，但我办不到，那个少年早就不见了，只剩下我垂老之躯。