Perelman made a category of arguments that he termed "quasi-logical." Quasi does not mean "fake" in this context, but just that they are similar to the arguments made in formal logic. Dr. Steven B. Katz joins us to discuss each of the arguments within this category, and how they rely on some of the most basic cognitive patterns that humans use to make sense of the world around us. Because we can perceive similarity, difference, and the relations of parts to the whole, we are able to use these as basis for arguments to move others. This episode builds on the episode "Chaim Perelman's Theory of Argumentation."