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君子给人的印象有三种变化:远看庄重威严,接触则温和可亲,听讲话则严肃不苟。
The moment you start to think about style, you're lost.
Quantum cryptography doesn't rely on the difficulty of mathematical problems, but on the fundamental laws of physics.
The key to understanding human cognition is to understand how symbols are manipulated.
We can talk about a happening in three main ways: by describing it, by recounting its history, by telling a story about it.