—— 请按键盘 空白键 开始游戏 ——

没有比你自己设下的陷阱更致命的陷阱了。
There is no trap so deadly as the trap you set for yourself.
真正的知识源自内心的洞察。
永远不要低估小步骤的力量,它们会带来巨大的转变。
作家应当是他时代的见证者,同时也是世界的创造者。
The truth is a slippery thing, especially in the dark.
Natural experiments are a powerful tool for understanding causal relationships in the real world.
In mathematics, as in life, the most profound discoveries often come from asking the simplest questions.