But if you are so inclined whether for this problem set or any other throughout the term, you can change your mind week to week.

但是如果你倾向哪套题,那么你可以按周改变想法。

哈佛公开课 - 计算机科学课程节选

I wanted to say one more thing because I realize that you have to-- your first problem set will cover this-- is to talk about the concept that applies probability theory to Economics.

我还想提一点,因为我意识到...,你们的练习题中会涉及到这个,概率论在经济学中的,应用的问题

耶鲁公开课 - 金融市场课程节选

If that's all it knows, then in that scenario there is no building or anything else; it continues a trajectory both forward in time and backward in time, and it says that whatever seconds, one second before you set your clock to 0, it would've been on the ground.

如果是这样,在那种模式下,没有楼房或者别的什么,物体的运动轨迹可以沿时间可以向后延伸,也可以向前延伸,不管时间取什么值,在零点前一秒时,物体就在地面上

耶鲁公开课 - 基础物理课程节选

The only other thing--then next period we're going to talk-- on Friday we're meeting again and we're meeting again about-- this time it's about efficient markets and I want to talk about the evidence for efficient markets and against it and that will lead you into your third problem set about efficient markets.

下节课的主题是,我们将在周五的课上讨论,有效市场问题,我要讨论关于支持和反对,有效市场的证据,那时你们可以开始做,第三本习题集,是关于有效市场的

耶鲁公开课 - 金融市场课程节选