数学直觉常常指导算法的发展，但确保其正确性和效率的是严格的证明。

"It is a capital mistake to theorize before one has data."

译文：大树根深不怕疾风的摇动，树木笔直不担心影子歪斜。赏析：做人光明磊落，胸襟宽广，就不怕背后有人说三道四，评长论短。

I write to make sense of my own existence.

I think the only free man can feel this kind of excitement, a free man step on a long journey, towards the uncertain future.

文章的最高境界，能够通达神明，但这不是可以强求达到的。

Literature is the only way to run away without leaving home.

"To create is to resist death."