But my only criterion is if you talk in your sleep, now that's not allowed because talking is not allowed.

我唯一的要求就是别说梦话,因为我的课上不准说话的

耶鲁公开课 - 基础物理课程节选

But you're not allowed to give up your natural rights either.

认为连你自己都不能放弃你的自然权利。

耶鲁公开课 - 公正课程节选

Your only real chance was not allowed to happen.

你唯一的这次机会是不容错过的。

斯坦福公开课 - 经济学课程节选