intro to St Thomas Aquinas Flashcards
what was Aquinas’ main work called?
summa theologica
what two different routes did Aquinas say we could use to understand God?
revelation
human reasoning
explain way 1:
(3 premises and conc.)
p1- objects are in motion
p2- everything in motion was put in motion by something else
p3- there can’t be an infinite regress of movers
conc.- there must be a first unmoved mover which is God
explain way 2:
(3 premises and conc.)
p1- everything which exists has a cause
p2- anything that’s caused has to be caused by something else
p3- there can’t be an infinite regress of causers
conc.- there must be a first uncaused causer which is God
what does ex nihilo nihil fit mean?
out of nothing nothing can come
explain way 3:
(3 premises and conc.)
p1- there are contingent things
p2- contingent things can cause other contingent things but this can’t extend back forever
p3- infinite regress is impossible
conc. - there must be at least one necessary thing which we call God