—— 请按键盘 空白键 开始游戏 ——

我不认为每个人都应该成为数学家,但我确实相信许多学生没有给数学一个真正的机会。
Advice like these are not laws. They are like hats. If one doesn’t fit, try another.
A picture book is a dance between words and images—they should move together.