—— 请按键盘 空白键 开始游戏 ——

Mathematics is the art of giving the same name to different things.
"The world breaks everyone, and afterward, many are strong at the broken places."
The beauty of mathematics is that it is universal.
The past is a foreign country; they do things differently there.
素描就是诚实。没有作弊的可能。画得好就是好,不好就是不好。
Leadership is about inspiring others to see possibilities where they once saw limitations.