"Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding."

The more time I spent on mathematics, the more excited I got.

变革在中间阶段最为艰难。

如果我能影响那位应该主持所有孩子洗礼的善良仙女，我会要求她给世界上每个孩子的礼物是一种永不磨灭的惊奇感，使之持续一生。