In his writings on Early Christian Ethics, Thomas Aquinas proposed the existence of four distinct types of laws. These laws are eternal, natural, human, and divine. Aquinas defines eternal law as that which orders everything in the universe. It is a cosmos which issues from the will and wisdom of God. He defines natural law as a subset of eternal law. He states that the natural law is the location for the fundamental principles of morality, and we come to the natural law through conscience and reason. Essentially, Aquinas incorporates Aristotle's ideas of practical wisdom and reason, incorporates them into his natural law, and states that the natural law comes from God. This gives eth