Two former philosophy students, Thomas Cathcart and Daniel Klein, had a theory: jokes and philosophy are built the same way. Both set up an expectation and then twist it to reveal something unexpected. Their 2007 book, Plato and a Platypus Walk into a Bar: Understanding Philosophy Through Jokes, tests the theory chapter by chapter, and it became an international bestseller.
How it works
Each chapter introduces a branch of philosophy, such as metaphysics, logic, ethics, the philosophy of religion or existentialism, explains the core ideas in plain language, and then illustrates them with jokes. A joke about a man who searches for his keys under a streetlight because “the light is better here” becomes a lesson about method. Old Borscht Belt routines turn into lessons on logic. The authors call the approach “philogagging.”
What works
The jokes do real teaching. Reading a punchline and then seeing why it is funny, because it exposes a hidden assumption or a flaw in reasoning, makes the philosophical point stick in a way a textbook rarely does. The book is short, about 200 pages, and covers a remarkable range of thinkers, from Plato and Aristotle to Kant, Mill, Kierkegaard and Wittgenstein (and, inevitably, Groucho Marx).
What does not
Some jokes are groaners, and a few have aged poorly. Serious students will want more depth. But depth is not the point. This is a doorway, and a very funny one.
Verdict
An excellent gift for a curious teenager or anyone who skipped Philosophy 101. Cathcart and Klein followed it with several sequels, including Heidegger and a Hippo Walk Through Those Pearly Gates, but the original remains the best.
Sources: Plato and a Platypus Walk into a Bar, Wikipedia.
