Antonio Genovesi (1713–1769) was born in Castiglione near Salerno in the Kingdom of Naples into a minor noble family. Destined for the priesthood, he received minor orders and continued his studies in Buccino, where priests and members of religious orders contributed to his education (Ricci 2012). He did not pursue a strictly scholastic or dogmatic theological career.

In 1738 Genovesi moved to Naples, where he began to critically analyse traditional learning while studying modern authors, including Locke, and developing works in metaphysics, logic, and ethics. His intellectual project developed within a broader Neapolitan intellectual environment in which the legacy of the Accademia degli Investiganti (1650–1683) and its Baconian orientation remained significant. This orientation understood knowledge as grounded in experience and directed towards the study of human beings in their natural and civil contexts. The Investiganti had developed an anthropology underpinned by the recognition of the imperfection and limits of human knowledge, and the consequent finitude and vulnerability of human beings. Against this broader Neapolitan intellectual background, Genovesi developed a philosophical programme that likewise emphasised the limits of human knowledge and the finite and vulnerable condition of human beings, articulating an ethics of intellectual improvement directed towards human improvement through the expansion of knowledge in relation to civil life.

The legacy of the Investiganti survived through intellectual networks in Naples after the dissolution of the academy, particularly through circles associated with the jurist Nicolò Caravita. Caravita gathered in his house jurists and scholars connected to the Investiganti milieu after the trial proceedings initiated by the Roman Inquisition against those accused of atomism and atheism. Among the participants were leading Neapolitan jurists associated with the jurisdictional tradition, who defended the libertas philosophandi and the ancient privileges and liberties of the city of Naples. These liberties, understood as forms of local self-government, were historically claimed by the Neapolitan political community and forcefully defended, as in the 1647 revolt, which briefly proclaimed the Neapolitan Republic. Within this broader intellectual environment, the legacy of the Investiganti continued to circulate alongside other philosophical and scientific currents, and Genovesi later established intellectual relations with figures such as Celestino Galiani, Paolo Mattia Doria, and Giovan Battista Vico. Across this heterogeneous Neapolitan milieu, different strands of the novatori shared a critique of scholastic Aristotelianism, a defence of libertas philosophandi, and an engagement with empirical and experimental approaches increasingly directed towards public and civil ends.

In 1739 Genovesi founded a private school of philosophy and theology in Naples. The theology taught there was non-dogmatic and formed part of a rational and critical curriculum in which theology functioned as a preparatory discipline within a philosophical education directed towards civil action. Through this school Genovesi developed a pedagogy centred on judgement and practical reason, aimed at the improvement of civil life and the formation of citizens capable of participating in public life.

Between 1741 and 1745 Genovesi held teaching appointments in metaphysics at the University of Naples, and in August 1746 he was appointed to the chair of ethics with the support of Celestino Galiani, a position he held until his appointment to the chair of commerce in 1754 (Venturi 1962; Venturi 1969; Waldmann 2022). During this university period he composed and published a series of systematic works in Latin that articulated the conceptual progression of his philosophical project. These works also reflect his engagement with modern authors, including Locke, alongside his critical confrontation with scholastic Aristotelianism.

Across these works Genovesi developed a trajectory linking general metaphysics, philosophical anthropology, natural theology, and natural law. This trajectory reached an important normative articulation in 1752 with the publication of Principia legis naturalis et officiorum humanorum, which developed the ontological, anthropological, and natural-theological premises of the preceding works in relation to natural law. Within this trajectory, sociability was already grounded in human finitude and vulnerability (socialitas) and articulated through the communicatio bonorum, understood as the exchange of goods of mind, body, and fortune as a structural condition of civil life. Natural law appears as the moment in which these philosophical premises are translated into the normative order of civil life.

In 1754 Genovesi was appointed to the newly created chair of Commercio e Meccanica at the University of Naples, later known as the chair of Civil Economy and generally considered the first chair of political economy in Italy (Venturi 1962; Venturi 1969). Funded by Bartolomeo Intieri, it represented an institutional extension of his civil philosophy: an applied moral science grounded in sociability, trust, justice, and public happiness. His lectures from this position were later published as the Lezioni di economia civile, the most influential vehicle for the diffusion of the passage from natural law to political economy. The work enjoyed a particularly wide reception in Spain (where it was considered radical and was condemned by the Inquisition), in Spanish America, and in other European countries.

Genovesi died in Naples in 1769. His work left a lasting intellectual legacy that influenced Neapolitan Enlightenment culture and shaped debates on civil economy, natural law, and public happiness.

Genovesi’s principal engagement with natural-law theory belongs to the first phase of his intellectual development and is articulated across a series of works published from the 1740s onwards. During this period, he sought to construct a philosophical science of civil life grounded in metaphysics, philosophical anthropology, and natural theology. Within this broader intellectual programme, natural law represents the moment in which the ontological and anthropological premises of the system are translated into the normative structure of civil life. The central work of this phase is the Principia legis naturalis et officiorum humanorum (1752), also published under the title De legibus naturalibus. The treatise forms the fourth part of the Elementa metaphysicae, following earlier treatments of ontology, philosophical anthropology, and natural theology, and provides the normative articulation of premises developed in the preceding parts. The Elementa metaphysicae, however, continued to be revised and expanded after the publication of the Principia in 1752, as Genovesi continued to develop this philosophical project. Bibliographically, the Psychesophia of 1747 constituted the second volume of the Elementa, while the De Legibus Naturae of 1752 constituted its fourth volume (Waldmann 2022). 

Structurally, the Principia legis naturalis follows the general pattern of modern natural-law treatises while reconfiguring its internal logic. The argument begins with a methodological introduction establishing the need to understand human nature in order to determine the foundations of law. It then develops an anthropology of finitude marked by the imbecillitas naturae humanae (the structural insufficiency of human nature to live a fully human life outside civil society and the vulnerability resulting from that condition); examines the emergence of sociability and the first laws grounded in the communicatio bonorum (the communication or exchange of goods of mind, body, and fortune); addresses obligation and the role of the supreme legislator; and considers the translation of natural law into civil legislation adapted to peoples, places, and times. Thus, the work connects the metaphysical order of nature with human vulnerability and the normative structure of civil coexistence.

Within the treatise Genovesi engages critically with the modern natural-law tradition. He rejects the reduction of right to power associated with Hobbes and Spinoza and argues that law necessarily entails obligation and therefore cannot be grounded merely in force or utility. He examines the different accounts of the foundations of obligation and sociability of jurists such as Grotius, Pufendorf, Cumberland, Wolff, and Heineccius. He also discusses moral philosophers such as Shaftesbury and Wollaston, whose appeal to a moral sense or affective harmony he considers insufficient to ground a universally binding law. These discussions clarify his position on the foundations of obligation, sociability, and the relation between natural law and civil legislation. 

The principles elaborated in the Principia legis naturalis were subsequently reformulated in pedagogical form in De jure et officiis (1764) and De jure et officiis epitome in usum tironum (1765). These later works condense the main elements of his conception of natural law—iustitia, amicitia civilis, and the communicatio bonorum—within a didactic framework intended for the moral formation of citizens. 

Although Genovesi had already been appointed in 1754 to the chair of Commerce and Mechanics, from which he began to elaborate the project that would later be published as the Lezioni di commercio o sia d’economia civile, he continued thereafter to revisit the moral and juridical foundations of civil life. He returned to several themes of natural law in Della Diceosina o sia della filosofia del giusto e dell’onesto (1766), presenting a philosophy of justice and civic ethics connecting virtue, public utility, and natural justice.

These writings show that Genovesi did not conceive natural law as an isolated juridical discipline but as the normative foundation of civil life. In the architecture of his thought, the account of natural law elaborated in the Principia legis naturalis provides the conceptual bridge between the metaphysical and anthropological investigations of his earlier philosophical works and the later development of civic ethics and civil economy.

In the Principia legis naturalis, Antonio Genovesi defines natural law as veritas realis, the objective order governing the relations among things and the first and supreme rule of life and conduct (Principia legis naturalis, p. 99–102). Natural law therefore expresses the structure of the order of nature as the normative standard prior to any particular legislation. At the same time, Genovesi emphasises the epistemic limits of human cognition: nimis ampla rerum natura est, ut plene possit a mente humana comprehendi, while human beings themselves are finite (p. 102). Because the nature of things is too vast to be fully comprehended by the human mind, human beings may fail to keep natural law constantly before their eyes or to perceive its full extension. Genovesi invokes these epistemic limits to explain the additional role of revelation in promulgating and reinforcing natural law (p. 102).

This conception rests on an anthropology of finitude characterised by imbecillitas. Human beings are rational yet dependent creatures who cannot preserve or perfect themselves alone. Sociability thus arises from structural insufficiency rather than mere benevolence or abstract moral inclination. Because individuals require cooperation to secure both preservation and improvement, civil life becomes the necessary sphere in which human beings can live well and happily (bene beateque vivere) within the limits of their condition of mutual interdependence (p. 4–5, 26–27).

Within this framework Genovesi identifies the communicatio bonorum as the practical mechanism of sociability. Human beings respond to their imbecillitas through the exchange of goods of mind, body, and fortune (bona animi, bona corporis, bona fortunae), which enables common preservation and the progressive improvement of human life. Natural law provides the normative structure regulating this order of cooperation.

The synthetic core of natural law is condensed in the maxim of rendering to God, oneself, and others what is due to each, and of living in civil friendship (amicitia civilis). Within this framework, justice (iustitia) requires that one do no harm and render to each his due (suum cuique tribuere), while civil friendship imposes the duty of assistance and cooperation (quoad scimus ac possumus). Justice and civil friendship thus constitute the principles sustaining social cooperation and civil stability.

The obligatoriness of natural law has both an intrinsic and an extrinsic dimension. Intrinsically, the rule of natural law is inscribed in the human constitution and accompanied by conscientia sui, which refers primarily to reflexivity or self-awareness rather than to a fully developed doctrine of autonomous moral conscience. Extrinsically, obligation presupposes a superior legislator endowed with both right and power, guaranteeing the binding force of the law.

Genovesi engages critically with several authors of the modern natural-law tradition. Against the reduction of right to power associated with Hobbes and Spinoza, he argues that law necessarily entails obligation and therefore cannot be grounded merely in force or utility. While engaging with earlier jurists such as Grotius and Pufendorf, he questions the adequacy of their respective accounts of the foundations and binding force of obligation. He likewise distances himself from attempts to derive the normative structure of sociability directly from natural benevolence or harmony, as in the case of Cumberland’s theory of universal benevolence. Genovesi also examines the positions of Wolff, Köhler, and Heineccius in his discussion of natural law and obligation, while developing his own position. Finally, he rejects the view—associated above all with Shaftesbury and echoed in the moral philosophy of Wollaston—that a moral sense or affective harmony could by itself provide a foundation for obligation.

Finally, natural law does not remain at the level of abstract universality but requires institutional translation: civil laws must be adapted to peoples, places, and times to sustain coexistence and promote civil well-being. Natural law is articulated through a relational structure of rights (jura), duties (officia), and obligations (obligationes), rather than through a system of individual rights conceived in isolation. Rights and duties are closely connected: Genovesi relates the jura belonging to human beings to corresponding officia, while the duties of justice and mutual assistance protect the conditions of individual preservation and civil sociability. This is particularly evident in Genovesi’s treatment of mutual assistance: De jure et officiis identifies mutuum auxilium with the duty to assist those in need (De jure et officiis, p. 98) and later explicitly describes the jus auxilii as a right grounded in human nature (ingenitum, primumque in hominum natura) (p. 254).

This relational formulation is particularly appropriate because Genovesi himself introduces the subject of De jure et officiis through the relationship between human jura, law, and the officia corresponding to those rights. His treatment of property likewise derives a natural right of use (jus utendi) from the conditions necessary for human preservation rather than treating rights as conceptually detached from human dependence. 

Natural law thus functions as the normative framework ordering the communicatio bonorum through which human beings respond to their structural vulnerability (imbecillitas) and sustain the cooperative order of civil life.