The Summa Theologica, written by Saint Thomas Aquinas in the 13th century, is a fundamental work in Christian theology and philosophy. Thomas Aquinas, a Dominican friar and scholastic theologian, aimed with this manuscript to create a synthesis of Christian doctrine, combining Aristotelian empiricism, divine revelation, and ecclesiastical teachings.

The work addresses themes such as the nature and essence of faith, the incarnation of Christ, and the relationship between faith and the doctrine of the Trinity, establishing itself as an essential compendium of moral and dogmatic theology, especially during the Middle Ages, a period marked by the interaction between faith and reason. This treatise is not merely a collection of teachings but also a dynamic tool for theological exploration, reflecting Aquinas' effort to reconcile sacred texts, philosophical traditions, and social issues.

Its influence extended to the point of being placed alongside the Bible at the Council of Trent, highlighting its elevated status. The work, which includes discussions on the courage to profess faith in adverse contexts, the integrity of faith, and challenges such as blasphemy and spiritual blindness, also faced controversies, particularly during the Renaissance and the Protestant Reformation.

Incomplete due to Aquinas' death, the Summa Theologica remains an indispensable reference in ecclesiastical studies, Canon Law, and Catholic Theology. Its importance is such that ignoring or being unaware of it represents a significant gap in the serious study of Christian theology.

In writing "Theology in Dialogue," I sought to make theology accessible and relevant. By using characters such as Thomas, Gabriel, Leonardo, Sophia, Amanda, Mariane, and others, I aimed to bring theology to life, facilitating the understanding of complex themes through a more human and sensitive approach.

This book does not avoid difficult questions; on the contrary, it addresses them clearly, allowing both beginners and experts to appreciate its depth. In the second volume "b" of this work, we will explore themes such as the essence and nature of faith, the incarnation of Christ as the pillar of salvation, and the intrinsic relationship between faith and the doctrine of the Trinity.

We will also discuss the importance of wisdom and prudence, reverence and hope in the religious experience, and charity through the Augustinian lens. Therefore, I invite you to continue this journey of theological exploration, where your presence and participation are not only welcome but essential.

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