数学中的每个问题都是一个等待解决的谜题，而乐趣就在于解决的过程。

Sustainability is no longer a choice; it's a necessity for survival in our industry.

The real challenge is to make something complex appear simple.

The whole conviction of my life now rests upon the belief that loneliness, far from being a rare and curious phenomenon, peculiar to myself and to a few other solitary men, is the central and inevitable fact of human existence.

It is error only, and not truth, that shrinks from inquiry.

解释：往往在你觉得是轻而易举的时候，困难也就跟着来了。

"The first draft is just you telling yourself the story."