8. How tostart and stop arguments 8.如何開始和停止爭論 Part two close analysis,segment eight, how to start and stop argument. 第八部分是如何開始分析的，第二部分是結束。  Have premises.We already know that from our definition, because an argument just is a set ofsentences. Some of them are premises and another is the conclusion. So it's gotto have some premises, but not just any old premises will do. They have to havecertain special properties. For example, suppose I say, I can fix your plumbingand you apply. 有前提。從我們的定義中我們已經知道了，因為論點就是一組句子。它們有的是前提，有的是結論。所以它必須有一些前提，但不只是任何舊的前提。它們必須具有某些特殊性質。例如，假設我說，我可以修好你的水管，然后你申請。  Well, how do Iknow? You're really good at that? And I say, you can trust me, but you ask, whyshould I trust you? And I say, because you can trust me when I say that you cantrust me, you replied, but why should I trust that? And I say, be...