Concluding René Descartes's Rules for Direction of the Mind (1628).

We finish rule 12 through the end, talking about simples, the faculties of intuition and judgment, perception and imagination, necessary vs. contingent truths, and how to do Cartesian science, including what constitutes a "perfectly understood problem."

Start with part one, or get the full, ad-free Citizen Edition. Please support PEL!

End song: "Perfect Design" by Ian Moore, as interviewed on Nakedly Examined Music #94.

Sponsors: Get 20% off at nativedeodorant.com (code PEL), $10 off at skylightframe.com (code PEL), 20% off at hempfusion.com (code PEL), and learn about St. John's College at sjc.edu.

Boston-area listeners can see Wes live talking Joker on 11/22; see partiallyexaminedlife.com/joker.