In this episode, we continue our series on St Thomas Aquinas' Five Ways by exploring his Third Way: the Argument from Contingency.
Aquinas begins with a simple but profound observation: the things we encounter in the world don't have to exist. You exist, but you could have failed to exist. The same is true of trees, mountains, planets, stars, and everything else we encounter in the created world. Philosophers describe things like these as contingent beings.
But if everything were contingent, i.e. if everything depended upon something else for its existence, then what ultimately explains why anything exists at all? Aquinas argues that contingent beings must ultimately depend upon a Necessary Being: a reality that does not receive its existence from anything else and cannot fail to exist.
In this episode, we discuss:
- What "contingency" means in philosophyThe difference between contingent and necessary beingsWhy things in the world don't contain the reason for their own existenceWhy a collection of contingent beings cannot ultimately explain itselfAquinas' argument for the existence of a Necessary BeingWhy the Argument from Contingency does not require the universe to have a beginning in timeHow Aquinas' Third Way differs from the Argument from Motion and the Argument from Efficient CausalityHow Aquinas' first three Ways point towards the same ultimate reality from three different starting points
This episode is part of our series exploring St Thomas Aquinas' Five Ways and the classical philosophical arguments for the existence of God. The First Way begins with change and leads us to an Unmoved Mover. The Second begins with efficient causality and leads us to a First Efficient Cause. And the Third begins with contingent existence and leads us to a Necessary Being.
Whether you're interested in philosophy, Catholic theology, apologetics, metaphysics, or the relationship between faith and reason, I hope these episodes help make Aquinas' thought more accessible and encourage you to explore his arguments for yourself.
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