Whatever is Moved is Moved By Another

“Motion is the act of a being in potency insofar as it is in potency.” - Aristotle, Physics Book III, 201a10-11 In his famous First Way of proving God’s existence, St. Thomas Aquinas says, “It is certain, and evident to our senses, that in the world some things are in motion.”1 But, are things really in motion? Most people would think that motion in the world is too obvious to doubt. Yet, some, based on theories of modern physics, claim that physical change in the universe is... Read More