领导力就是今天做出艰难的决定，以塑造更美好的明天。

学习数学的唯一方法就是做数学。

To write is to bear witness to the world's beauty and cruelty.

译文：真正有大智慧的人，悠闲自在，行为不受拘束，一切都顺应自然。

While you invent， don't select. While you sketch， don't inspect. While you write the first draft， don't reflect.