This lecture discusses key ideas from the Medieval philosopher, theologian, and Benedictine monk Anselm of Canterbury's dialogue, On Truth (the first work in a trilogy including On Freedom of Choice and On The Fall of the Devil) It focuses specifically on the multiple modes of truth that Anselm and his student will range over and analyze in their dialogue. These include truth in signification, thought, the will, action, the being of things, and the senses, and the Supreme Truth. To support my ongoing work, go to my Patreon site - www.patreon.com/sadler If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM You can find over 2000 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler Purchase Anselm's Works - https://amzn.to/2ZnZRcu