计算机科学中的真正挑战不是编写程序，而是理解计算的本质。

The real challenge in computer science is not to write programs, but to understand the nature of computation.

约翰·霍普克罗夫特

我渐渐发现，一个人活着其实仅仅是一个人的事，生活关照型的朋友可能了解我身上的每一个痣，不一定了解我的心，精神交流型的朋友可能了解我的心，却又常常拂我的意。快乐来了，最快乐的是自己，苦难来了，最苦难的也是自己。

贾平凹

积善多者，有一恶，是为过失，未足以亡。

王符

The world is full of magic things, patiently waiting for our senses to grow sharper.

世界上充满了神奇的事物，耐心地等待着我们的感官变得更加敏锐。

弗朗西斯·斯普福德

我无时无刻不对自己的所作所为深感内疚，这不是因为我在这里（监狱），也不是讨好你们（假释官）。回首曾经走过的弯路，我多么想对那个犯下重罪的愚蠢的年轻人说些什么，告诉他我现在的感受，告诉他还可以有其他的方式解决问题。可是，我做不到了。那个年轻人早已淹没在岁月的长河里，只留下一个老人孤独地面对过去。重新做人？骗人罢了！小子，别再浪费我的时间了，盖你的章吧，我没有什么可说的了。

There's not a day goes by I don't feel regret. Not because I'm in here, or because you think I should. I look back on the way I was then. Then a young, stupid kid who committed that terrible crime. I want to talk to him. I want to try and talk some sense to him, tell him the way things are. But I can't. That kid's long gone and this old man is all that's left. I got to live with that. Rehabilitated? It's just a bullshit word. So you go on and stamp your form, sonny, and stop wasting my time.Because to tell you the truth, I don't give a shit.