Thomas Aquinas opens the second part of his monumental theological synthesis by investigating the theological virtues, beginning with faith, its object, and its acts. The treatise explores the mechanics of divine revelation, the distinction between explicit and implicit belief, and the ways grace moves the human intellect to assent to truths surpassing natural reason. Aquinas meticulously addresses potential objections to church doctrine, establishing the foundational role of faith as the substance of things hoped for. Subsequent sections dissect the virtues of hope and charity, exploring how human desires are ordered toward the supreme good.
The discussion extends to prudence, justice, fortitude, and temperance, analyzing each virtue through detailed subdivisions and moral scenarios. Aquinas investigates the specific acts associated with these virtues, from almsgiving and restitution to martyrdom and prayer, while also examining their opposing vices. Throughout the work, the author demonstrates how human actions derive their moral weight from their ultimate end in God, mediated through the operation of grace and the gifts of the Holy Ghost. The argument advances systematically, utilizing dialectical inquiry to resolve apparent contradictions in scripture and patristic tradition. The text culminates in a comprehensive examination of the various states of life within the Church, contrasting the active and contemplative paths while maintaining a unified vision of spiritual perfection.