在富裕和贫穷的国家，选择是一种奢侈品，一种美妙却难以得到的东西，而不是一种权利。

In rich and poor countries, choice is a luxury, something wonderful but hard to get, not a right.

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但是，当面包难以得到的时候，同样也会导致动荡的局面。

But when bread is hard to get, that, too, causes unrest.

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它们与我们以前难以得到的病人大脑内的神经元几乎是一样的。

They're identical essentially to the neurons inside the brain of a patient that we couldn't get access to before.

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They are un-individuated, if that makes any sense, in the act of sexual union. There is the unutterable sexual rush that can only come about through total corporeal enjambment.

这时候他们，如果可以这么说，被非个体化了，这里有种只有通过完全的,肉体交合才能得到的难以言喻的性高潮。

耶鲁公开课 - 弥尔顿课程节选

And that makes it for me a very exciting time to study this because the problems aren't solved in the way that bridge building is largely a solved problem now.

对于我而言,这是一个非常激动人心的时代,因为一百年前桥梁建设中难以解决的问题,在今天都得到了解决

耶鲁公开课 - 生物医学工程探索课程节选

What you want isn't always what you get and this leads to a set of reactions to cope with the fact that pleasure isn't always there when you want it either by planning how to satisfy your desires or planning how to suppress them.

世事总难以尽如人意,快乐并不总是在你想要的时候得到满足,你只能通过设法满足欲望,或设法抑制欲望,来应对这样的事实。

耶鲁公开课 - 心理学导论课程节选