There are numerous <i>Summas</i> from the thirteenth century, but none quite like Thomas Aquinas's <i>Summa Theologiae</i> in simplicity, scope, and rigor of organization. The structure of the <i>Summa</i> may seem complex to those approaching it for the first time, but it is a remarkable feat of clarity in comparison with its predecessors. In his spare and accessible English translation, Mark D. Jordan captures this clarity in Thomas's discussion of the theological virtue of faith.