Every problem in NP can be reduced to the satisfiability problem, which is the cornerstone of computational complexity theory.
写作是一种思考的方式,一种理解世界的方式。
The test of a first-rate intelligence is the ability to hold two opposed ideas in mind at the same time and still retain the ability to function.
大海不拒绝各种各样的水,所以才能成就它的博大;大山不拒绝形形色色的土石,所以才能成就它的高峻;贤明的君主不嫌弃百姓,所以能够聚集众多的臣民;读书人不厌倦学习,所以能达到圣贤的境界。
博物馆不是一个中立的空间 - 它是意义的战场。