The Light of Reason vs. the Light of Faith (Aquinas 101)

How do faith and reason relate to one another? Some people think that only the light of reason, or only science, can be trusted in the search for truth. Some have claimed that religion, or even faith itself, involves a kind of darkening of the mind. Is that true? Are faith and reason in conflict with one another? Is faith a cause of darkness, or of light? In this video, Fr. Dominic Legge, O.P. explains the difference between the light of faith and the light of reason.