“The believer in a rationally established natural law must, then, face the hostility of both camps: the one group sensing in this position an antagonism toward religion; and the other group suspecting that God and mysticism are being slipped in by the back door.
To the first group, it must be said that they are reflecting an extreme Augustinian position which held that faith rather than reason was the only legitimate tool for investigating man’s nature and man’s proper ends. In short, in this fideist tradition, theology had completely displaced philosophy.[3] The Thomist tradition, on the contrary, was precisely the opposite: vindicating the independence of philosophy from theology, and proclaiming the ability of man’s reason to understand and arrive at the laws, physical and ethical, of the natural order, if belief in a systematic order of natural laws open to discovery by man’s reason is per se anti-religious, then anti-religious also were St. Thomas and the later Scholastics, as well as the devout Protestant jurist Hugo Grotius.
The statement that there is an order of natural law, in short, leaves open the problem of whether or not God has created that order; and the assertion of the viability of man’s reason to discover the natural order leaves open the question of whether or not that reason was given to man by God. The assertion of an order of natural laws discoverable by reason is, by itself, neither pro- nor anti-religious.[4]”
