One of the great debates in philosophy is whether or not moral rules are created by humans or exist independently from us as absolute truths. The German philosopher Immanuel Kant believed that we could discover objective moral principles, and his theory of the Categorical Imperative was meant to give us a framework for distinguishing between right and wrong. In this episode we give an overview of the Categorical Imperative, including some famous thought experiments that argue both for and against Kant’s idea. We also learn about Kant’s rules for throwing a good dinner party, marvel at Mark’s absolute lack of knowledge about all things Scottish and answer some listener mail about our tagline.