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In asking the question, one asks for the essences of things, or more simply, what they are. The ancient philosopher Plato called the answers to these questions the “forms.” Aristotle believed in the forms, but saw them as existing in things themselves. In this episode, you’ll learn how all things of nature are composed of…

How can the water in a river always be flowing by and yet it remains the same river? By wrestling with this and various puzzles regarding change, Aristotle discovered the distinction between act and potency or actuality and potentiality. Aristotle realized that all the things in nature are a blend of act and potency, like…

What is reality? What is real? When we start asking these questions, we start our inquiry into being. Everything that has being is in some way one and unified, true or intelligible, good and thus desirable, beautiful and therefore pleasing. When we proceed further along these lines, we have arrived at the science of metaphysics.…

Everyday, we wrestle with differing opinions and truth claims. Are we left to despair that we cannot find a way through these conflicting claims? The calling of St. Thomas Aquinas was to pose all the most relevant questions, face all the most relevant difficulties involved in each question, and draw all the relevant distinctions. In…

Down through the ages, mankind has been on the search for truth. Is there such a thing as absolute truth? How can we know what is true? The principle of non-contradiction stands as a kind of witness that human beings can know something solid and true about reality as a whole. In this video, you’ll…

  Christian theology considers who God is in himself, in his own inner life. The mystery of the Trinity is the primary mystery in Christianity because it concerns who God is and the fact that God has willed to offer us knowledge of himself—even participation in his own divine life by grace. In this video,…