Abstract

Father Frederick Copleston is best known for his carefully crafted works History of Philosophy and Thomas Aquinas. Copleston’s most notable metaphysical thesis is his interpretation of the argument from contingency, which he sees as the superior choice for theists. He draws on Aquinas and distinguishes between causa fieri and causa esse to argue that God is a higher order cause of contingent causal series. Copleston presents God not as a temporal first cause, but an ontologically ultimate cause necessary to explain a contingent universe. His contribution changed the way we read Aquinas. Copleston’s willingness to debate his thesis with different philosophical perspectives is illustrated by his acceptance to discuss God’s existence with Bertrand Russell, in 1948. This BBC radio debate epitomises the dispute between theists and atheists from the 1940s onwards. I undertake to expound and comment Copleston’s contribution to metaphysics, present relevant parts of the debate and provide criticism.