Aquinas is sometimes taken to hold a foundationalist theory of knowledge. So, for example, Nicholas Wolterstorff says, “Foundationalism has been the reigning theory of theories in the West since the high Middle Ages. It can be traced back as far as Aristotle, and since the Middle Ages vast amounts of philosophical thought have been devoted to elaborating and defending it‥ ‥ Aquinas offers one classic version of foundationalism.” And Alvin Plantinga says, “we can get a better understanding of Aquinas … (...) if we see [him] as accepting some version of classical foundationalism. This is a picture or total way of looking at faith, knowledge, justified belief, rationality, and allied topics. This picture has been enormously popular in Western thought; and despite a substantial opposing ground-swell, I think it remains the dominant way of thinking about these topics.”. (shrink)