You had a semiotic system, whereas before, yesterday, or a minute ago you had no language at all.

一个符号系统诞生了，然而之前，昨天，或者就是一分钟前，根本就没有语言。

耶鲁公开课 - 文学理论导论课程节选

But he continued to say "it is possible; there is no human limitation on that; " we can run the mile in under 4 minutes."

但他还是说“有可能;,在这件事上人类没有极限;,我们能在四分钟之内跑完一英里“

哈佛公开课 - 幸福课课程节选

For decades, ever since the mile was timed, no one broke the four minute barrier.

数十年来，自从开始一英里跑计时以来，没有人突破四分钟界限。

哈佛公开课 - 幸福课课程节选

And runners proved the doctors and scientists-- proved that they were right and ran the mile in two seconds and 4 minutes, one second, but no runner could run the mile in under 4 minutes, ever since the mile was actually timed-- when they started to time runs.

跑手们证明了医生和科学家…,证明了他们是对的,一英里跑四分钟两秒，四分钟一秒，但没有跑手能少于四分钟，从一英里跑计时以来-,当人们开始计时跑时。

哈佛公开课 - 幸福课课程节选