lhe Natural Law political ethic has at times been considered as something vague and ill-defined; in this article the author outlines a way of analyzing the presentday political and ideological reality from the view-point of Natural Law. lo this end he studies the relations that can arise between permissiveness in general and permissiveness in the juridical context, and then considers the implications of these relations in the Law-Morality binomial, together with the different solutions put forward in the course of history by Relativism, Pragmatism, Liberalism, Marxism and by the Natural Law; finally he makes a special analysis of the criticisms that have been made of the principIes of the Natural Law.