“By invalid, I don't mean false, I don't mean bad, I don't even mean evil. All I mean is that it's possible that the premises can be true, and the conclusion could be false...” ————————— Find out which premises Fr. Ambrose is talking about by listening to “Demonstration and Certainty in Thomistic Philosophy of Nature" on the Thomistic Institute podcast! #ThomisticInstitute #WashingtonDC #StThomasAquinas #ThomisticCircles #Eucharist #CatholicFaith #CatholicTeaching #Prayer #SpiritualGrowth #CatholicEducation #CatholicTheology #podcast #catholicpodcast #Truth #Love #Philosophy #Nature