—— 请按键盘 空白键 开始游戏 ——

I never saw a wild thing sorry for itself. A small bird will drop frozen dead from a bough without ever having felt sorry for itself.
数学家是能在定理之间找到类比的人;更好的数学家是能在证明之间看到类比的人;而最好的数学家是能注意到理论之间类比的人。
Diversification is the only free lunch in investing.