Pagan Cicero's “Natural Law” was incorporated into the faiths of the Founders—it was only the earliest of the philosophies and beliefs accepted by them to buttress the architecture of the dogma that made the US Constitution what it was.
Jewish and Christian principles were primary in the endeavor but they were not the first—”Natural Law” was the root reality in America's creation as much as Marx's “Communism” is the foundation for all variations of socialism from Stalin To Hitler To Obama.
Natural law nonsense is why our constitution is in the shape it is in today.
A handful of well-meaning, but confused patriots sealed the destruction of that which they most wished to preserve. (and, sadly, they had it right in the Declaration of Independance, if only they had continued in that path)