How did St. Anselm of Canterbury connect faith and reason in his philosophy?

St. Anselm of Canterbury, a prominent medieval philosopher and archbishop of Canterbury, integrated faith and reason by maintaining that while faith must precede understanding, reason serves to provide logical support for what is believed. He famously characterized this approach as fides quaerens intellectum, or "faith seeking understanding".12

In his works, Anselm sought to demonstrate theological truths through rational inquiry rather than relying solely on scriptural authority. In the Monologion, he utilized Neoplatonic thought to construct proofs for the existence of God based on the observation of degrees of perfection and goodness in the world.12

His most significant contribution, the ontological argument presented in the Proslogion, posits that God is "that than which nothing greater can be conceived". Anselm argued that because it is greater to exist in reality than merely in the intellect, the very concept of such a being necessitates its existence. This synthesis of rigorous logic and religious conviction remains a foundational element of his philosophical legacy.12