If you didn't really believe that your body was going to die, why would you ever bother writing a will?

如果人们不相信自己的肉体会消亡，为什么要花功夫写遗嘱？

耶鲁公开课 - 死亡课程节选

Why? Any violinists in here or anybody who ever played a string instrument?

这又怎样,这里有小提琴手吗,或者有人拉过弦乐器吗

耶鲁公开课 - 聆听音乐课程节选

So, have you ever liked somebody or disliked them and not known why?

例如，你是否曾经毫无理由地,喜欢或厌恶过某个人？

耶鲁公开课 - 心理学导论课程节选

Why would anyone ever risk one's life for ? one's country or a cause just to help other people, people that we don't know and probably will never know?

为什么人人都要为自己的国家或者,去救人的缘由而冒险，并且这个人我们不认识,可能永远也不会认识？

耶鲁公开课 - 政治哲学导论课程节选

So, conceptually if you've ever wondered why you get access in all of your functions to global variables that's because they're not down here, they're at the very top of RAM and any function can access that RAM way up there, but for now the interesting player in the story is this thing called the heap.

所以，如果你想知道为什么全局变量能在,所有的函数中使用,那是因为它们不在这下面，而是在内存的顶端,那样任意函数都可以在内存中使用它们，现在，这里面一个有用的角色是,叫做堆的东西。

哈佛公开课 - 计算机科学课程节选

One of the best descriptions I've ever read of why slavery persisted, of why people defended it, and why people went to war for it, came before the war, in 1857, in a speech by the African-American woman, novelist, writer, poet Frances Ellen Watkins Harper.

我曾读到的一段比较精彩的论述,关于为什么奴隶制度留存了下来,为什么人们为其辩护,为其而战,在1857年,战争前夕,在一个非裔美国女人的演讲中,她是小说家兼作家兼诗人,弗朗斯·伊莲·瓦特金·哈伯

耶鲁公开课 - 美国内战与重建课程节选

So the question was, why is this return down at this level, it says, well if I ever execute out of this FOR loop, I get to the end of the FOR loop without hitting that branch that took me through the return, then and only then do I want to actually say, gee, I got to this place, there isn't any value to return, none I'm going to return none and none.

问题是，为什么它是在这个级别上返回值呢，意思就是如果我出了这个for循环,就意味着我运行的过程中没有走到任何,带return的支路上去,这时也只有这时我才能说天呐,我终于走到这儿了，这时不会返回任何值，只会返回none和。

麻省理工公开课 - 计算机科学及编程导论课程节选

Do you ever wonder why your brain looks wrinkled?

你们有没有想过,大脑为何会满是褶皱

耶鲁公开课 - 心理学导论课程节选

One of the reasons why the Milgram experiment is so nice to know is that if this ever happens to you, not as an experiment but in real life, it will no longer be new to you.

其中一个原因,为什么我们都应该知道米尔格林姆实验,就是如果这种情况发生在你身上，我不是说实验，而是在现实生活中，你不再对这种情况一无所知。

耶鲁公开课 - 心理学导论课程节选