Primary: Present and explain one of Aquinas' arguments for the existence of God, then discuss one of Aristotle's four causes in relation to it. You can use the Aristotelian cause either to support Aquinas' argument or to take a stand against it.
Secondary: Who is doing a better job of considering the truth about God's existence, Augustine or Aquinas? Which thinker do you think has the more appropriate method for finding the truth about this issue? Why?