A problem is in P if it can be solved quickly by a computer, and in NP if a solution can be verified quickly.
Anger is a powerful force, but it can also be a creative one.
真正的独角兽不仅仅是估值，而是创造持久的价值。
解释：要想人爱护自己，必须先爱护别人；要想人顺从自己，必须先顺从别人。
Language is the only tool we have to make sense of the world, and yet it is always inadequate.
In every story, there is a hidden truth waiting to be discovered.
"In God we trust. All others must bring data."