← Familiar Quotations / A Collection of Passages, Phrases, and Proverbs Traced to / Their Sources in Ancient and Modern Literature

Saint Augustine. 354-430

When I am here, I do not fast on Saturday; when at Rome, I do fast on Saturday.[767:4]

Epistle 36. To Casulanus.

The spiritual virtue of a sacrament is like light,—although it passes among the impure, it is not polluted.[767:5]

Works. Vol. iii. In Johannis Evangelum, c. tr. 5, Sect. 15.