Poor Joshua Norton was not dangerous or violent, but he no longer knew what was real and what was only imaginary.

VOA: special.2009.12.14

So I had only known people of color. I only knew black people or Nigros as we called ourselves then or we are called.

所以，我所认识的人,就只有黑人而已,那时我们自称“黑鬼“,大家也都这么叫我们。

普林斯顿公开课 - 人性课程节选

As I said, in some context last time, how many Russian peasants died in the 1890s thinking, "Oh my god, if the Czar only knew that we're starving, how angry he would be with his officials."

就像我在上一讲提到的,有多少死于1890年代的俄国农民会想,"上帝啊,要是沙皇知道我们在挨饿就好了,他该对手下的官员发多大的火啊"

耶鲁公开课 - 欧洲文明课程节选

as Charlie Parker's followers called him. Parker knew those performances might be his last chance to re-claim the success he had gained only a few years earlier.

VOA: special.2009.05.03

If you knew only the third derivative of the function, you can have something quadratic in t without changing the outcome.

如果方程里有三阶导数,你就可以引入一个二次项,但是结果却不会变

耶鲁公开课 - 基础物理课程节选

Everyone who knew about paleontology knew about this specimen because it was the only one.

VOA: standard.2009.12.08

Contrast that with "Bill knew that John liked himself," which only has the meaning Bill knew that John liked John.

而"比尔知道约翰喜欢他自己"这句话,就只是意味着"比尔知道约翰喜欢约翰"

耶鲁公开课 - 心理学导论课程节选

Alexander,who had never baked before, says he knew the only way to have this kind of bread again was to learn how to make it himself.

VOA: standard.2010.07.16

The only way that we knew how to grow it reliably was to grow it in its natural host: cows.

那目前我们所知道的唯一途径就是,利用它的自然宿主,奶牛

耶鲁公开课 - 生物医学工程探索课程节选

These are bads of life that could presumably be avoided if only we knew how much exactly we had--how much longer we had.

生命中的一些坏处可以被认为是可避免的,只要我们知道我们到底还有多少，还有多少时间。

耶鲁公开课 - 死亡课程节选

Only 16% of investors knew that there is no such company.

仅有16%投资者认为不存在这样的公司

耶鲁公开课 - 金融市场课程节选

So, imagine growing up in a place like that where the past was so-- was written not only in the death of people that you knew, because everybody you knew died basically.

所以想像在这种地方长大,那种历史真是,不光写在那些你认识的死者上,因为你认识的基本上都死了

耶鲁公开课 - 1871年后的法国课程节选

Aristotle went on to say that the justice needed to control this dark side of human nature can be found only in a well ordered society of free people who govern themselves, and the only one that he knew was the Polis of the Greeks.

亚里士多德还说过,正义需要用来,控制人性的丑恶面,只有在公民自治的秩序井然的,社会里才能找得到正义,他所知道的这样的社会就是希腊城邦

耶鲁公开课 - 古希腊历史简介课程节选