Medieval Modal Logic amp Science uses modal reasoning in a new way to fortify the relationships between science ethics and politics. Robert C. Trundle accomplishes this by analyzing the role of modal logic in the work of St. Augustine and St. Thomas Aquinas then applying these themes to contemporary issues. He incorporates Augustines ideas involving thought and consciousness and Aquinass reasoning to a First Cause. The author also deals with Augustines ties to Aristotelian modalities of thought regarding science and logic reassessing the commonly held belief in Augustines Platonism to not be a mistake as much as a simplistic view of his philosophy. Trundle links contemporary issues in epistemology morality theology and logic making several useful connections between ancient and medieval studies in modal logic and modern concerns. These applications of modal theory illuminate many puzzles in the works of Heidegger Wittgenstein Whitehead and Kuhn.