Catholic theology reflects upon the content of divine revelation as interpreted and handed down in the Church, but today Catholic theologians often find the scriptural and dogmatic past to be alien territory. The Renewal within Tradition Series undertakes to reform and reinvigorate contemporary theology from within the tradition, with St. Thomas Aquinas as a central exemplar. As part of its purpose, the Series reunites the streams of Catholic theology that, prior to the Council, separated into neo-scholastic and nouvelle théologie modes. The biblical, historical-critical, patristic, liturgical, and ecumenical emphases of the Ressourcement movement need the dogmatic, philosophical, scientific, and traditioned enquiries of Thomism, and vice versa. Renewal within Tradition challenges the regnant forms of theological liberalism that, by dissolving the cognitive content of the gospel, impede believers from knowing the love of Christ.