Economically identical, but their prices would fluctuate and fairly dramatically.

它们在经济意义上是相同的，但是他们的价格,会有波动，而且非常剧烈。

耶鲁公开课 - 金融市场课程节选

What we're saying is, in order to do computation, we want to describe recipes, we want to describe this sequence of steps built on some primitives, and we want to describe the flow of control that goes through those sequence of steps as we carry on So the last thing we need before we can start talking about real programming is, we need to describe those recipes.

我们在说，为了做计算，我们想描述一个方法，想描述建立在,相同基本类型上的步骤序列，而且我们想描述经过我们设计的,步骤的序列的，控制流程,因此我们开始谈论真正的编程之前,的最后一件事是，我们需要描述一下那些方法。

麻省理工公开课 - 计算机科学及编程导论课程节选

Just because it looks as though we can imagine it and just because it seems as though from the fact that we can imagine one without the other, it just won't necessarily follow that we really do have two things that are separate and not identical in the real world.

仅仅是因为我们似乎能够,想象到一个事物独立于,另一个事物存在这件事,并不能说明,在现实世界里,有这样两个,相互独立,而且不相同的事物

耶鲁公开课 - 死亡课程节选