死者要求的是正义，而不仅仅是纪念。

有志者，事竟成。

I think frugality drives innovation， just like other constraints do. One of the only ways to get out of a tight box is to invent your way out.

成功需要抓住大趋势

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

In computational learning theory, we seek to understand the fundamental principles that govern learning from data.