But there's more, and this is why novels are long: - not too long, not too short, but of a certain length-- of a certain magnitude, as Aristotle puts it.

但是当然还有很多别的东西，要不这本书也不会那么长：,不是太长，但也不短，刚刚好能说明清楚问题的长度-,亚里士多德这么评价。

耶鲁公开课 - 文学理论导论课程节选

It, too, is pretty short, but take a look at what this one does.

它也很短，但先看看,这个是干什么的。

哈佛公开课 - 计算机科学课程节选