Posts tagged Summa contra Gentiles

Re: Reader Mail #32

Kevin,

You’re right about the origins of St. Thomas’s Third Way. In On the Power of God, a work dated after the Summa contra Gentiles but before the Summa Theologica, he explicitly attributes the argument to Ibn Sina, with developments added by Ibn Rushd. (In fact, all of the arguments used in the Five Ways are explicitly attributed to other philosophers at some point or another in St. Thomas’s work.)