What is the natural law? What are its principles? How does it relate to positive laws?

In order to understand the concept of natural law and its principles it is important to understand what Aquinas sought to achieve with his political philosophies. Prior to Aquinas, the mainstream of Christian political thought had been rooted in faith. Faith, by its very definition is the belief in something for which there is no logical or rational justification for. Since the very concept of religion was based on faith, reason was thought to be inimical to faith. Aquinas sought to marry faith and reason and arrive at a political theory that forged a union between the faith of Christi…