An interview with Msgr. Mariano Fazio, auxiliary vicar of Opus Dei, on the Italian TV200 programme “Di Buon Mattino,” speaking about his book, “Protagonisti del bene comune. San Josemaría Escrivá e i cristiani nella società contemporanea.” This is a translated transcript of the conversation, in which he explains how St. Josemaría’s message on holiness in ordinary life invites Christians to engage with society, work with professionalism, and contribute to the common good.