What I mean by that is, pick a simple set of values, and let's walk through it to see what happens. And this is useful because it's going to allow me to A make sure that I've got something that's going to terminate, it's going to let me make sure that in fact I'm doing the right kinds of updates.

原因你们知道的，好，模拟代码,我的意思就是,选出一系列的值来,然后模拟下代码的执行来看看结果,这很有用因为这让我确保我的程序在某个地方,可以终止，还会让我确保实际上我。

麻省理工公开课 - 计算机科学及编程导论课程节选

Anyway let me try to say something that might be useful.

无论如何，我来阐释一些,可能有用的东西。

耶鲁公开课 - 政治哲学导论课程节选

But notice what this does. The first thing it does is, it says, let's check and make sure x is greater than or equal to 0. If it isn't, notice what's going to happen. None of that block is going to get executed, and it's going to come down here and print out a useful piece of information, which says, hey, you gave me a negative number. I don't know how to do this.

做的是和以前一样的事情,但是注释它做了什么，第一件做的事情就是,程序说，要去检查并且确信x是大于等于0的，如果不是的话，请注意会发生什么,下面的代码都不会被执行,程序会到这里来然后显示一些有用的信息,信息会说，嘿，你给了我一个负数,我不知道该怎么弄这个了。

麻省理工公开课 - 计算机科学及编程导论课程节选

But since it is my intent to write something useful to whoever understands it, it has appeared to me more fitting to go directly to the effectual truth of things than to the imagination of it.

但因为我的目的是,书写一些对任何懂的人,有用的东西，所以最合适的方式是,直接书写事情的有力事实,而非妄想。

耶鲁公开课 - 政治哲学导论课程节选