And I had mentioned several times thatyou do not need to memorize the majority of the equations and you don't need to memorize any physical constants.

另外我已经提过好几次了,绝大多数的公式大家都不需要去背,也不用去记任何物理常数。

麻省理工公开课 - 化学原理课程节选

It does not take one to know one; to understand the truths about the French, you do not yourself need to be French.

这不需要同类互知,你不需要是法国人,才能了解法国人

耶鲁公开课 - 死亡课程节选

You do need to know how to use it, but it's not about the details of, where do the semi-colons go in Python. All right?

你们确实需要知道怎么使用它，但是并不是具体细节，比如在Python中怎么写分号，好么？

麻省理工公开课 - 计算机科学及编程导论课程节选