+The post then briefly discusses the idea of a "logical" argument, one whose conclusions follow from its premises. "All rectangles are quadrilaterals; all squares are quadrilaterals; therefore, all squares are rectangles" is given as an example of illogical argument, even though both premises are true (all rectangles and squares are in fact quadrilaterals) and the conclusion is true (all squares are in fact rectangles). The problem is that the conclusion doesn't follow from the premises; the reason all squares are rectangles isn't _because_ they're both quadrilaterals. If we accepted arguments of the general form "all A are C; all B are C; therefore all A are B", we would end up believing nonsense.
+
+Yudkowsky's conception of a "rational" argument—at least, Yudkowsky's conception in 2007, which the Yudkowsky of the current year seems to disagree with—has a similar flavor: the stated reasons should be the actual reasons. The post concludes:
+
+> If you really want to present an honest, rational argument _for your candidate_, in a political campaign, there is only one way to do it:
+>
+> * _Before anyone hires you_, gather up all the evidence you can about the different candidates.
+> * Make a checklist which you, yourself, will use to decide which candidate seems best.
+> * Process the checklist.
+> * Go to the winning candidate.
+> * Offer to become their campaign manager.
+> * When they ask for campaign literature, print out your checklist.
+>
+> Only in this way can you offer a _rational_ chain of argument, one whose bottom line was written flowing _forward_ from the lines above it. Whatever _actually_ decides your bottom line is the only thing you can _honestly_ write on the lines above.