Franciscan Institute Publications: Philosophy series, Issue 15

according to Scotus act of volition active and passive active cause active principle actu actu et potentia actum agens agent alio movetur aliqua aliquid Aristotelian Aristotle autem Averroes causa cinesiological principle distinction doctrine downward motion Duns Scotus efficient cause enim ergo esset etiam existence explain free fall Godfrey of Fontaines habet heavy body heavy thing Hence Henry of Ghent Hervaeus Natalis Ibid idem ideo illa illud intellect ista matter Metaph metaphysical modo motion principle motum motus moved movens mover movet movetur ab alio naturalis nature nihil nisi object omne quod movetur Oxon passive in reference passive principle perfection Philosophy physical potency and act potentia potest primary motion primo principium principle of motion proof propter quae quam quia relation respectu Scotistic secundum self-motion sicut Subtle Doctor Summa Summa contra Gentiles Summa Theologica sunt tamen thinkers Thomas tunc virtual act