Give a man a fire and he's warm for a day, but set fire to him and he's warm for the rest of his life.
给一个人火，他能温暖一天；但把他点燃，他能温暖余生。
思考是最高的行为。
"Think wrongly, if you please, but in all cases, think for yourself."
Every problem in NP can be reduced to the satisfiability problem, which is the cornerstone of computational complexity theory.
心灵不是一种事物，而是一个过程。