Maimonides and St. Thomas Aquinas, the two pre-eminent Jewish and Christian thinkers of the medieval period, shared a passion for applying the rationalist methods of Aristotle to questions of belief. Ori Z. Soltes, author and Georgetown University professor, considers how these two gigantic thinkers differ and where they share common ground, both generally and in particular, and how they offer relevance to our own world of thought and action.