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If you don't know why you're about to eat cake like that you will soon, but you know this.
如果你现在还不知道为什么将要吃到那样的蛋糕,很快就会知道的，你清楚这一点。
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That's an idea that struck people intuitively at various times in history, but they didn't know how to do these calculations.
在历史上,人们很多次,直觉地感知到了这一点,但是他们不知道怎么去计算
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Derrida is aware of it in advance. He says in effect, "Look, I know we're running this risk in saying everything is language," or, if you will here, everything is discourse.
德里达提前意识到了这一点，他说，“我就知道将一切都说成是语言是冒险的“,或者，如果你愿意，一切都是言语。
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And you should know that a 2 s is larger than that, and a 3 s is even larger, and of course, hopefully as we go to 4 and 5, you would be able to guess that those are going to get even larger.
你们要知道２ｓ比这更大一点，３ｓ就更大，当然对于４和５,你们可以猜到,它们就会更大一些。
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It wasn't until the 20th century, so almost 200 years later, that we learned how to do this.
在詹纳研制出天花疫苗二百多年后,直到二十世纪,我们才知道如何做到这一点
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So putting that all together, I know that it must go through here again, and once again, i get a straight line.
把这些点连在一起,我知道它一定会经过这一点,这次我们又画出了一条直线
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But we all know that people do fall in love, but souls would allow us to explain that.
但是我们都知道人会坠入爱河,而灵魂能够帮助我们解释这一点
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But that's changing, and more and more people do want to know the story of its food.
但这一点正在发生变化,越来越多的人想知道食物背后的故事
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And it may have saved that.
而这种方法能帮你知道这一点。
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And I realize I'm moving over this very quickly, ? but is Thrasymachus wrong to believe that?
我知道我在这一点上推得很快，但，Thrasymachus，那么相信真的错了吗？
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Three. Good, so everyone that recognized that probably got the right answer of three angular nodes here.
三，很好，那么知道这一点的同学,应该都得到了正确结果,也就是三个角向节点。
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Sure, she goes away--we have to understand this: we know our mother goes away, but guess what?
当然，她有时必须离开--我们必须理解这一点：,我们知道妈妈走了，但是你猜怎么着？
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We now know, and I'm going to talk about next time, lots of ways to do this, alternatives to this method of bioengineering.
我下节课会讲,我们现在知道,有很多方法能做到这一点,并能替代上述生物医学工程方法
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I think the more we think about it, the more we realize that we only know what it is if we know the system that it belongs to, which is to say, all of the things related to it which it is not. Right?
你们越仔细想这一点，就越明白，我们只有知道事物所属的符号系统,才能认识事物，所有事物都是和同一符号系统中的反面相关的？
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So we can do this directly as long as we have certain types of information.
因此，只要知道了一定类型的信息,我们就可以直接做到这一点。
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So to get this slice, this next slice here, I need rationality; as some of you know that's widely criticized in the social sciences these days.
要剔除这个范围,需要理性因素,可能有些人知道,这一点最近社会科学界广受质疑
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And there'd be no way at all that you could possibly tell.
而你完全没有办法,知道这一点。
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I stress it in particular because I know you're all going to get into this stage; you've got a problem set due in a couple of hours, you're still writing the code, you don't want to waste time, and I'm going to use quotes on "waste time", doing those extra things to do the defensive programming, you just want to get the darn thing done.
我特别强调了这一点,因为我知道你们都会慢慢成为程序员;,你在写代码过程中造成了一系列的错误，你还在写代码，你不想浪费时间，我想把“浪费时间“用引号圈起来，浪费时间来做因为防卫性程序设计，而带来的这些额外的事情,你只想赶紧把程序写完，这不是一个好习惯，因为当你做完回头。
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But there'd be no way at all he could know that.
但他完全没有办法,知道这一点。
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And I picked looking at methane so we could see if there are other factors that we're not considering, that we need to maybe tweak our model a little bit, and I think we'll find that we do if we take a look at a polyatomic molecule, methane, CH4 so c h 4.
我选择甲烷这个例子，我们可以看到,如果有一些我们没有考虑到的因素，我们需要修改一下我们的模型，我们看一看,甲烷CH4这个多原子分子，就会知道这一点，甲烷。
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The answer could turn out to be yes, for all we know at this point.
这个答案也许是肯定的,我们都知道这一点
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So people were dying of old age and that was really heart disease that was killing them they just didn't know, so it's multi-factorial and we'll talk about that.
老死的人实际是死于心脏病,只不过人们不知道这一点罢了,这是个多因素的问题,我们以后会进一步探讨
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