—— 请按键盘 空白键 开始游戏 ——

The act of writing is an act of optimism.
Art is a vehicle for communication.
When given the choice between being right or being kind , choose kind.
We teach a subject not to produce little living libraries on that subject, but rather to get a student to think mathematically for himself.
真正的竞争对手从来不是同行,而是用户的旧习惯。