Now, as obvious a statement as that is in this algorithm, it turns out that is the key to this whole problem being solved correctly without my algorithm looping infinitely.

这是此算法中很明显的一句话，也是正确解决,整个问题的关键,否则此算法就会陷入死循环。

哈佛公开课 - 计算机科学课程节选

Bare survival of my soul,even though that is the key to personal identity-- if it is--bare survival of my soul doesn't give me what I want.

仅有我灵魂的存活，即便是个人认同感的关键-,也并没有给予我，我想要的任何东西。

耶鲁公开课 - 死亡课程节选

The reason it printed that is I accidentally had my finger on the control key, which said print the last thing you had.

这是正确显示的，原因是刚才,我不小心按住ctrl键了，也就是这会显示你最后写的东西。

麻省理工公开课 - 计算机科学及编程导论课程节选