In the third argument for moral liberty, which is the most obscure of the three, Reid claims that a person could not engage in planned conduct if not endowed with power. Since it's obvious, he thinks, that we do engage in planned conduct, it follows that we must have power over our actions. Reid links the third argument for moral liberty with the argument from design for God's existence. According to the argument from design, God must exist since the world is so complex, and yet so orderly, that