You won't get everything you need simply by coming to the lectures.

只听讲座无法让你得到所需的全部知识。

耶鲁公开课 - 死亡课程节选

Well, as I say, different theories would try to systematize these examples in different ways; that we don't have any kind of accomplishments, we don't have knowledge, we're not in the right kinds of loving relationships.

就像我所说的，不同的理论会尝试,把这些例子以各种方式归类;,比如我们没有任何的成就，我们没有那种知识，我们得到的是不合适的爱情。

耶鲁公开课 - 死亡课程节选

That means, when I take two derivatives, I want to get a, then you should know enough calculus to know it has to be something like at^, and half comes from taking two derivatives.

也就是说,当我想求二阶导时,得到了a,你应该有足够的微积分知识,才能知道必须有类似at^的项,而这个1/2则是因为求了两次导数

耶鲁公开课 - 基础物理课程节选