This study analyzes the emergence of two of the main books of precepts at the beginning of the Christian era:
Rule of Saint Benedict and Saint Gregory the Great’s Pastoral Rule. Our interest in examining these two
glimpse traces of the notion of the “common good”. Studying the form of the various precepts allows us to
examine the relationship between life and rules, insofar as we are dealing with a concept of standards whose
effectiveness is inseparable from life, whether in terms of life according to a common set of precepts in Saint
Benedict, or guidelines for the virtuous life of a pastor in Saint Gregory the Great. In the final section of the
work, we will seek to discuss the arguments constructed in light of Umberto Eco’s The Name of the Rose.