In medieval disputes over the
nature of God, many theologians and philosophers (such as
Thomas Aquinas) held that when one says that "God is good" and that "man is good", man's goodness is only analogous to, i.e. similar to but distinct from, God's goodness.
John Duns Scotus, while not denying the analogy of being of Thomas Aquinas, nonetheless holds to a univocal
concept of being. Scotus believed in a common concept of being that is proper to both God and man, though in two radically distinct modes: infinite in God, finite in man. The claim here is that we understand God because we can share in his being, and by extension, the transcendental attributes of being, namely, goodness, truth, and unity. So far as Scotus is concerned, we need to be able to understand what ‘being’ is as a concept in order to demonstrate the existence of God, lest we compare what we know - creation - to what we do not - God. Thomas Williams has defended a version of this argument. ==Gilles Deleuze==