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Aquinas and Blackstone Naturalism
Neo-Natural Law Theory – John Finnis
John Finnis takes himself to be explicating and developing the views of Aquinas and Blackstone. Like Bix, Finnis believes that the naturalism of Aquinas and Blackstone should not be construed as a conceptual account of the existence conditions for law. According to Finnis, the classical naturalists were not concerned with giving a conceptual account of legal validity; rather they were concerned with explaining the moral force of law: "the principles of natural law explain the obligatory force (in the fullest sense of 'obligation') of positive laws, even when those laws cannot be deduced from those principles" (Finnis 1980, 23-24). On Finnis's view of the Overlap Thesis, the essential function of law is to provide a justification for state coercion (a view he shares with Ronald Dworkin). Accordingly, an unjust law can be legally valid, but it cannot provide an adequate justification for use of the state coercive power and is hence not obligatory in the fullest sense; thus, an unjust law fails to realize the moral ideals implicit in the concept of law. An unjust law, on this view, is legally binding, but is not fully law.
Like classical naturalism, Finnis's naturalism is both an ethical theory and a theory of law. Finnis distinguishes a number of equally valuable basic goods: life, health, knowledge, play, friendship, religion, and aesthetic experience. Each of these goods, according to Finnis, has intrinsic value in the sense that it should, given human nature, be valued for its own sake and not merely for the sake of some other good it can assist in bringing about. Moreover, each of these goods is universal in the sense that it governs all human cultures at all times. The point of moral principles, on this view, is to give ethical structure to the pursuit of these basic goods; moral principles enable us to select among competing goods and to define what a human being can permissibly do in pursuit of a basic good.
On Finnis's view, the conceptual point of law is to facilitate the common good by providing authoritative rules that solve coordination problems that arise in connection with the common pursuit of these basic goods. Thus, Finnis sums up his theory of law as follows:
[T]he term 'law' ... refer[s] primarily to rules made, in accordance with regulative legal rules, by a determinate and effective authority (itself identified and, standardly, constituted as an institution by legal rules) for a 'complete' community, and buttressed by sanctions in accordance with the rule-guided stipulations of adjudicative institutions, this ensemble of rules and institutions being directed to reasonably resolving any of the community's co-ordination problems (and to ratifying, tolerating, regulating, or overriding co-ordination solutions from any other institutions or sources of norms) for the common good of that community (Finnis 1980, 276).
Again, it bears emphasizing that Finnis takes care to deny that there is any necessary moral test for legal validity: "one would simply be misunderstanding my conception of the nature and purpose of explanatory definitions of theoretical concepts if one supposed that my definition 'ruled out as non-laws' laws which failed to meet, or meet fully, one or other of the elements of the definition" (Finnis 1980, 278).
Nevertheless, Finnis believes that to the extent that a norm fails to satisfy these conditions, it likewise fails to fully manifest the nature of law and thereby fails to fully obligate the citizen-subject of the law. Unjust laws may obligate in a technical legal sense, on Finnis's view, but they may fail to provide moral reasons for action of the sort that it is the point of legal authority to provide. Thus, Finnis argues that "a ruler's use of authority is radically defective if he exploits his opportunities by making stipulations intended by him not for the common good but for his own or his friends' or party's or faction's advantage, or out of malice against some person or group" (Finnis 1980, 352). For the ultimate basis of a ruler's moral authority, on this view, "is the fact that he has the opportunity, and thus the responsibility, of furthering the common good by stipulating solutions to a community's co- ordination problems" (Finnis 1980, 351).
The Procedural Naturalism of Lon L. Fuller
Like Finnis, Lon Fuller (1964) rejects the conceptual naturalist idea that there are necessary substantive moral constraints on the content of law. But Fuller, unlike Finnis, believes that law is necessarily subject to a procedural morality. On Fuller's view, human activity is necessarily goal-oriented or purposive in the sense that people engage in a particular activity because it helps them to achieve some end. Insofar as human activity is essentially purposive, according to Fuller, particular human activities can be understood only in terms that make reference to their purposes and ends. Thus, since lawmaking is essentially purposive activity, it can be understood only in terms that explicitly acknowledge its essential values and purposes:
The only formula that might be called a definition of law offered in these writings is by now thoroughly familiar: law is the enterprise of subjecting human conduct to the governance of rules. Unlike most modern theories of law, this view treats law as an activity and regards a legal system as the product of a sustained purposive effort (Fuller 1964, 106).
To the extent that a definition of law can be given, then, it must include the idea that law's essential function is to "achiev[e] [social] order through subjecting people's conduct to the guidance of general rules by which they may themselves orient their behavior" (Fuller 1965, 657).
Fuller's functionalist conception of law implies that nothing can count as law unless it is capable of performing law's essential function of guiding behavior. And to be capable of performing this function, a system of rules must satisfy the following principles:
- (P1) the rules must be expressed in general terms;
- (P2) the rules must be publicly promulgated;
- (P3) the rules must be prospective in effect;
- (P4) the rules must be expressed in understandable terms;
- (P5) the rules must be consistent with one another;
- (P6) the rules must not require conduct beyond the powers of the affected parties;
- (P7) the rules must not be changed so frequently that the subject cannot rely on them; and
- (P8) the rules must be administered in a manner consistent with their wording.
On Fuller's view, no system of rules that fails minimally to satisfy these principles of legality can achieve law's essential purpose of achieving social order through the use of rules that guide behavior. A system of rules that fails to satisfy (P2) or (P4), for example, cannot guide behavior because people will not be able to determine what the rules require. Accordingly, Fuller concludes that his eight principles are "internal" to law in the sense that they are built into the existence conditions for law.
These internal principles constitute a morality, according to Fuller, because law necessarily has positive moral value in two respects: (1) law conduces to a state of social order and (2) does so by respecting human autonomy because rules guide behavior. Since no system of rules can achieve these morally valuable objectives without minimally complying with the principles of legality, it follows, on Fuller's view, that they constitute a morality. Since these moral principles are built into the existence conditions for law, they are internal and hence represent a conceptual connection between law and morality. Thus, like the classical naturalists and unlike Finnis, Fuller subscribes to the strongest form of the Overlap Thesis, which makes him a conceptual naturalist.
Nevertheless, Fuller's conceptual naturalism is fundamentally different from that of classical naturalism. First, Fuller rejects the classical naturalist view that there are necessary moral constraints on the content of law, holding instead that there are necessary moral constraints on the procedural mechanisms by which law is made and administered: "What I have called the internal morality of law is ... a procedural version of natural law ... [in the sense that it is] concerned, not with the substantive aims of legal rules, but with the ways in which a system of rules for governing human conduct must be constructed and administered if it is to be efficacious and at the same time remain what it purports to be" (Fuller 1964, 96- 97).
Second, Fuller identifies the conceptual connection between law and morality at a higher level of abstraction than the classical naturalists. The classical naturalists view morality as providing substantive constraints on the content of individual laws; an unjust norm, on this view, is conceptually disqualified from being legally valid. In contrast, Fuller views morality as providing a constraint on the existence of a legal system: "A total failure in any one of these eight directions does not simply result in a bad system of law; it results in something that is not properly called a legal system at all" (Fuller 1964, 39).
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