Everyone has a natural feeling of right and wrong. This meaning will lead people, culture and even the whole country to act in some way. Thomas Aquinas calls it a natural law of nature. God has established the laws of nature to make people more ethical. As a result of careful study, the natural law, including all the provisions of the law, turned out to be inconsistent with certain laws that exist today, especially abortion. "Natural law is determined by reason" (Aquinas IV, 94, 1) and it is given to everyone.
Let's summarize his view as the theory of natural law developed by Thomas Aquinas is widely regarded as a representative of the position of modern times. In Summa theology, Aquinas says what is called law is (1) reasonable in the sense of leading action, (2) appointing common interests, (3) legislative legislation by appropriate things; (4) Formally promulgated (I - II, q. 90). The eternal domination of the world dominated by God 's heaven satisfies these criteria in the demo (q.91, a.1). However, the natural law is part of God's rationality that human wisdom can mainly be obtained. Do not confuse with the order of the physical or biological world. The law can be predicted only by the similarity with the order found in irrational entities (q.91, a.2 ad 3)
The roots of the natural moral law are in the world of ancient Greece and Rome. In this article, Thomas Aquinas and moral law theory are emphasized. St. Thomas Aquinas (1224 - 1274) is an important philosopher and theologian of Christianity, his moral theory is absoluteism and moralism, that it focuses on the ethics of action I mean it. In his work that summarized theology, Aquinas states that God created natural law as a moral code that exists within the purpose of nature. "The law is only a common reason for the common interests of people.
By St. Thomas Aquinas (1225-1274), the natural law was instantly integrated systematically into the Christian theological tradition led by Western Europe. His position is often considered a paradigm because Aquinas has a very important influence on the tradition of natural law - a reaction that limits both tradition and excessive theology. Aquinas began discussing the legal nature of Summa Theologiae and defines the law as "rules of behavior and metrics, ie people are induced or limited" (Summa, Part 2, Part 1, Question 90, answer 1). This is something other than a practical reason indication (2.1.91.1) to manage the complete community rulers. Appropriate law is always aimed at general good, is in compliance with Aristotle, the purpose of human life, the common interest is happiness (2.1.90.2). Then Aquinas differentiates between the four laws.