有时候，治愈的唯一方法是先原谅自己。

The mining industry has a responsibility to leave communities better than we found them.

写文章的方法，贵在自己有所心得。

The PAC learning framework provides a formal way to quantify the learnability of a concept class.

和那些挑战你的人在一起，而不是只会附和你的人。