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。
Time is a concept that is derived from the way we perceive change.
Language is the only homeland.
痛苦的秘诀在于有空闲去烦恼自己是否幸福。
Understanding inequality requires looking beyond averages.
性格不是你与生俱来且无法改变的东西,比如你的指纹。它是你并非与生俱来且必须负责塑造的东西。