Thomas Aquinas: The Five Ways, Natural Law, and Analogy

Thomas Aquinas: The Five Ways, Natural Law, and Analogy

Thomas Aquinas (1225–1274) is widely regarded as the greatest theologian and philosopher of the medieval period. An Italian Dominican friar, Aquinas achieved the monumental task of synthesising the philosophy of Aristotle with Christian theology, creating a comprehensive intellectual system that remains the official philosophical framework of the Roman Catholic Church. His masterwork, the Summa Theologica (Summa Theologiae), begun in 1265 and left unfinished at his death, is one of the most important texts in the history of Western thought. For AQA A-Level Religious Studies, Aquinas is indispensable: his Five Ways, his natural law ethics, and his theory of analogy are all core topics.

Aquinas’s Intellectual Context

Aquinas lived at a pivotal moment in European intellectual history. In the 12th and 13th centuries, the works of Aristotle — which had been largely lost to Western Europe for centuries — were rediscovered through Arabic translations and commentaries, particularly those of the Islamic philosopher Averroes (Ibn Rushd, 1126–1198). Aristotle’s philosophy posed a profound challenge to Christian theology: