—— 请按键盘 空白键 开始游戏 ——

A long habit of not thinking a thing wrong gives it a superficial appearance of being right.
Mathematics is not a spectator sport; to understand it, one must engage with it actively.
信じることは、時には勇気がいる。
你的思维模式决定了你的生活模式。
The gender gap in economics is not just about numbers; it’s about whose stories get told.