When Catholicism goes bad it becomes the world-old, world-wide religio of amulets and holy places and priestcraft. Protestantism,in its corresponding decay, becomes a vague mist of ethical platitudes. Catholicism is accused of being too much like all the other religions; Protestantism of being insufficiently like a religion at all. Hence Plato, with his transcendent Forms, is the doctor of Protestants; Aristotle, with his immanent Forms, the doctor of Catholics.
C. S. Lewis (2013). “The Allegory of Love”, p.403, Cambridge University Press