If you look at John Geanakoplos's course on Financial Theory, his mathematical concepts are central to his outline of the course; but this being a Financial Markets course, I'm dividing it up more in terms of markets and institutions.

如果你们听约翰·吉纳科普洛斯的,金融理论课,他的大纲中心部分,是金融学中的数学概念,而我们这是金融市场课,于是我从金融市场和,金融机构的角度来划分这一课

耶鲁公开课 - 金融市场课程节选

It's a question of saying, "How on earth would you ever have the concept 'heterosexual' if you didn't have the concept 'homosexual' in place?" Right? The absolute interdependency of these concepts is, again, central to her argument and to her understanding of things.

这就像是说，如果首先没有“同性恋“这个概念,又怎么会有“异性恋“这个概念呢’,是吧，这些概念的绝对依赖性，是她论点的中心，同时也是她理解事物的中心轴。

耶鲁公开课 - 文学理论导论课程节选