““I have come to appreciate the pivotal distinction between Plato’s concept of Eternal Truths versus Aristotle’s experience-based understanding. I also now realize the crucial role played by Plotinus and the Neoplatonists in transforming Greek philosophical thought into the supernaturalism of modern-day western religions. Philosophy and spirituality are engaged in perpetual disagreement as to whether knowledge is best derived from human observation and introspection, or from a non-human source of information whether it be a god, a universal order, or the sanctity of mathematics.””