Invention is the mother of necessity.

我们都有裂痕，那是光照进来的方式。

计算效率的概念是学习算法设计的核心。

I went to the woods because I wanted to live deliberately. I wanted to live deep and suck out all the marrow of life. To put to rout all that was not life. And not, when I had come to die, discover that I had not lived.

我喜欢把建筑想象成生活的框架。