Expositio Psalmi CXVIII
Ambrose, Saint, Bishop of Milan
Ambrose. Sanctii Ambrosii Opera, Pars Quinta (Corpus scriptorum ecclesiasticorum Latinorum, Volume 62). Petschenig, Michael, editor. Vienna; Leipzig: F. Tempsky; G. Freytag, 1913.
Si in nauigio fluctuante sis constitutus, auertis a sentina oculos, ne uomitum moueat tibi; si in ciuitate ambulans aliquid faetidi odoris offendas, longe refugis atque declinas: