Catechism 101: The Argument from Efficient Causality

In this episode, we explore St Thomas Aquinas' Second Way, also known as the Argument from Efficient Causality. This is a classic cosmological argument for the existence of God.
Aquinas begins with a simple observation: everything we encounter in the world has a cause. Houses are built by builders, paintings are painted by artists, and trees grow from seeds. But if every cause depends on another cause, where does the chain ultimately begin? Aquinas argues that there must be a First Efficient Cause that gives existence and causal power to everything else.
In this episode, we discuss:

• What…