During the First Congress of the Iuris Naturalis Societas, held in Madrid in July 2025, Francisco J. Contreras's lecture focused on the constitutionalism of the common good formulated by Adrian Vermeule in Common Good Constitutionalism. He explained how this post-liberal trend proposes to overcome both progressive liberalism and conservative originalism in the US through a reinterpretation of constitutional law inspired by classical natural law theory. The speaker emphasized that, within this framework, individual rights are teleologically subordinate to the common good, understood as justice, peace, and solidarity, and that this entails a strengthening of the role of the state as the guarantor of moral and social order.However, critical objections were raised: while Vermeule's diagnosis of the moral and cultural crisis of liberal constitutionalism was recognized as relevant, it was noted that an excessively expansive and discretionary conception of the common good could compromise legal certainty and facilitate authoritarian tendencies under the guise of constitutional legitimacy.