Thoughts and Quotes on Moral Law                          

The first question is answered at once by recurring to the absolute necessity of the case; to the great principle of self-preservation; to the transcendent law of nature and of nature's God, which declares that the safety and happiness of society are the objects at which all political institutions aim, and to which all such institutions must be sacrificed.  Federalist Papers, #43, Madison

What is the law but divine virtue and wisdom assuming a visible form? What is it but the original ideas of truth and good, which were lodged in the uncreated mind from eternity, now drawn forth and clothed with such a vehicle as to appear even to human understanding.  Wesley

Natural Law: The participation of human beings in the eternal law of God, it is the objective order established by God which determines the requirements for human fulfillment and flourishing. The natural law is fundamentally a work of divine reason and is promulgated by God. However, through practical reason, we are able to participate in the dictates of the natural law and promulgate for ourselves its dictates, so that the natural law is both a human and divine work. Through the dictates of conscience, all persons are able to know the requirements of the natural law.  Catholic Online Forum

These, then, are the two points I wanted to make. First, that human beings, all over the earth, have this curious idea that they ought to behave in a certain way, and cannot really get rid of it. Secondly, that they do not in fact behave in that way. They know the Law of Nature; they break it. These two facts are the foundation of all clear thinking about the universe we live in.  C. S. Lewis

To prefer evil to good is not in human nature. Protagoras

The point which I should first wish to understand is whether the holy is beloved by the gods because it is holy, or holy because it is beloved by the gods.  Euthyphro