Aristotle appears to give two different accounts in the opening pages of the book that you might pay attention to.

亚里士多德在其书开头前几页,给出了两种不同的说法,你们要多加留意。

耶鲁公开课 - 政治哲学导论课程节选

What's obvious after the fact is not what's obvious before the fact.

显而易见的现存事物，在其诞生前,并不是那么显而易见的。

耶鲁公开课 - 金融市场课程节选

For example, Frito-Lay, before they really had to because of bad publicity, took out all of the Trans fats in their products and that was -they're the largest snack manufacturer in the world so that was a pretty significant advance for the healthiness of their foods.

例如,菲多利,为免受到舆论谴责,他们在政策发布前,就已剔除了其所有产品中的反式脂肪,他们是世界上最大的零食生产厂商,这对他们产品的健康程度也是一大提升

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选