Thomas Aquinas was a 13th century philosopher whose main theories were that matter and essence are connected in physical objects, knowledge starts with sense perception and can be expanded through reason, and inductive reasoning can be used to achieve generalizations. He believed both sense experiences and revelation provide truth for humans and will never conflict. Aquinas argued for God's existence through five ways: motion requires a prior mover, causation requires a first cause, contingency requires something for existence, perfection requires a highest degree, and order requires an intelligence. He disagreed with Plato's theory of forms and some theologians who doubted Jesus as God's son. Aquinas was an empiricist who believed experience and evidence were important and combined science with