The unmoved mover (Ancient Greek: ὃ οὐ κινούμενον κινεῖ,[1] ho ou kinoúmenon kineî, ”that which moves without being moved”) or prime mover(Latin: primum movens) is a monotheistic concept advanced by Aristotle, a polytheist,[2][3] as a primary cause or ”mover” of all the motion in the universe.[4] As is implicit in the name, the ”unmoved mover” moves other things, but is not itself moved by any prior action. In Book 12 (Greek ”Λ”) of his Metaphysics, Aristotle describes the unmoved mover as being perfectly beautiful, indivisible, and contemplating only the perfect contemplation: itself contemplating.
