哭着送去，哭着回来，回来后要努力于衣食之物的生产，资助祭祀，并用来孝顺双亲。 

There is more than one kind of freedom... Freedom to and freedom from. In the days of anarchy, it was freedom to. Now you are being given freedom from. Don't underrate it.

"Sometimes the hardest part of writing is just starting."

千丈长堤，可能因为蝼蚁的洞穴而溃决；百尺高楼，可能因为烟囱的缝隙冒烟而焚毁。

The challenge in computer science is not just to solve problems, but to find the right problems to solve.