If they acted with a kind of mechanical necessity or even geometric necessity, they could not possibly be moral laws in that way.

如果这些法则有机械上,或者几何上的必须性的话，它们就不能被称作道德法则。

耶鲁公开课 - 政治哲学导论课程节选

We've got to get into these black notes, which can be called sharps or flats.

我们必须涉及这些黑色音符了,它们可以被称为升调或降调

耶鲁公开课 - 聆听音乐课程节选

They have to be forced apart to a certain degree.

它们必须在一定程度上被分开。

耶鲁公开课 - 文学理论导论课程节选