I don’t think I’ve ever seen a much simpler and more concise explanation:
Natural Law in the Nursery:
By Walter Olson
“It’s my toy” = property law
“You promised” = contract law
“He hit me first” = criminal law
“Daddy said I could” = constitutional law
—Examples that the late Prof. Harold Berman of Harvard and Emory liked to invoke to show how children, from a very early age, grasp some of the basic principles of law. [John McGinnis, Liberty and Law]
Natural Law in the Nursery is a post from Cato @ Liberty – Cato Institute Blog
Jeremy B. Blevins 