How can you write an original poem when your literary consciousness is essentially made up of the memory of all the things that you've read before?

你怎么能说自己写的是原创的诗,当你的文思,主要是由你以前阅读积累下的记忆,组合成的呢？

耶鲁公开课 - 弥尔顿课程节选

Why should we have happiness as our highest end, as our chief concern, as that which determines the motion of our life?

为什么把快乐作为最终目标，作为主要担心，为什么由它来决定生命活动？

哈佛公开课 - 幸福课课程节选

She was awarded tenure in 1938, denied a professorship for 18 years, and when she presented her Ph.D thesis she was the one that determined that the sun is made dominantly of hydrogen, not ion, the way most of the old goats thought.

她是在1938年被授予长期聘用资格，拒绝接受教授职位18年，她在她的博士论文写到,她就知道,太阳主要是由氢组成的，不是那些老教授认为的那样它是由离子构成的。

麻省理工公开课 - 固态化学导论课程节选

You need to do that to be able to control the shield that's as big as that and as heavy as that, because it is made fundamentally of a heavy wood, typically covered by leather, sometimes with some bronze, a bronze sheet across the front of it as well.

如果你想自如操控这块盾牌就必须得这样,这种盾牌很大并且很笨重,因为它主要是由沉重的木材制成,表面一般覆有皮革,或包上铜皮,就是表面上有一层铜皮

耶鲁公开课 - 古希腊历史简介课程节选

That little J shaped curve is explained primarily by cigarette smoking because that keeps weight down in people, it also makes people sick so that their weight gets low because of that, and it explains the high rates of the disease risk there.

这个小J形曲线主要是由吸烟引起的,因为吸烟一方面能让体重降低,另一方面也引起疾病,疾病让人们的体重下降,这也解释了这里的高患病风险

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

In fact, our readiness and potential to experience happiness is mostly depended on our state of mind, not on our status, or the states of our bank account.

事实上，我们的准备和体验幸福的可能性,主要由我们的心境决定，不是我们的地位或银行账户状况。

哈佛公开课 - 幸福课课程节选