教育的功能是教人深入思考和批判性思考。
A problem is in P if it can be solved quickly by a computer, and in NP if a solution can be verified quickly.
Strong minds discuss ideas，average minds discuss events，weak minds discuss people.
I don't care if you're black, white, straight, bisexual, gay, lesbian, short, tall, fat, skinny, rich or poor. If you're nice to me, I'll be nice to you. Simple as that.