If you're pure, not only are meats and viands pure , but all kinds of knowledge, whether of good and evil.

如果你纯洁，不只是肉和食物，肉和酒会变得纯洁，所有的只是，无论善恶都会变得纯洁。

耶鲁公开课 - 弥尔顿课程节选

I want to shift now and talk about where does all this knowledge come from but I'll stop and answer any questions about the material so far.

现在我想来换下一个话题,说说这些知识都是从哪学到的,不过我要先停下来回答你们,关于目前内容的问题

耶鲁公开课 - 心理学导论课程节选

But here is a piece of imperative knowledge. All right?

不过这是个程序性知识，好么？

麻省理工公开课 - 计算机科学及编程导论课程节选