The Natural Law School is one of the oldest and most influential schools of legal thought. It is based on the idea that law is not merely a command made by the state but is connected with morality, reason, justice and universal principles. According to natural law thinkers, certain rights and principles are inherent in human beings and exist independently of political authority. These principles can be discovered through human reason, nature, conscience and, in some traditions, divine authority. The roots of natural law can be traced to ancient Greek philosophy. Aristotle distinguished between natural justice and conventional justice. The Stoic philosophers further developed the idea that all human beings share a common rational nature and are therefore subject to universal principles of justice. Roman philosopher and statesman Cicero argued that true law is right reason in accordance with nature and is universal and unchanging. During the medieval period, Thomas Aquinas gave a systematic formulation of natural law. He argued that eternal law governs the universe, while natural law represents the participation of rational human beings in