—— 请按键盘 空白键 开始游戏 ——

做得越多,学得越多;学得越多,能做的就越多。
But there is only one thing which gathers people into seditious commotion, and that is oppression.
The stone we extract today will shape the landscapes of tomorrow.
It is indeed an opinion strangely prevailing amongst men, that houses, mountains, rivers, and in a word all sensible objects, have an existence, natural or real, distinct from their being perceived by the understanding.
优秀的数学家应该既严谨又富有想象力。