The second argument for the existence of God (outside of Scripture) is the Teleological Argument – also known as the Argument of Design – or the Argument to Design. As with the Cosmological Argument, we go back to Greek philosophers for early presentations of the argument. They include Socrates, Plato and Aristotle. The Intelligent Design Theory (IDT) is a modern version of the Teleological Argument that proposes that many features of the universe and living things are best explained by intelligent design – an intelligent cause. Logical reasoning from the Intelligent Design of the universe is that there is an Intelligent Designer of the universe.