The Third Way of Aquinas: Contingency and Necessity

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Thomas Aquinas’s Third Way (Via Tertio), outlined in his Summa Theologiae, argues for the existence of God through the concepts of contingency and necessity. This argument centres on the observation that the existence of contingent beings (those that depend on external factors for their existence) requires the existence of a necessary being, which Aquinas identifies […]

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Aquinas’ First Two Ways: The Case for God’s Existence

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St. Thomas Aquinas’ First Way (from Change) and Second Way (from Efficient Causes) are foundational arguments in his Five Ways for proving the existence of God. These arguments reveal Aquinas’ deep metaphysical insight into the nature of existence, causation, and change. While closely related, they address distinct aspects of reality. Understanding these arguments also requires

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