It is worse still to be ignorant of your ignorance. Ne hoc quidem scire quod nescias. St. Jerome Buy The Letters of Saint Jerome at Amazon Buy The Letters of Saint Jerome at Amazon Read this letter at ccel.org Instagram sharing coming soon. Quote text and source copied to clipboard. Link to this quote copied to clipboard. More information about this quote Topic Willful ignorance Ignorance Author St. Jerome Source Letters of St. Jerome Medium Letter Language Latin Time 394 390s 4th century Era Classical antiquity Occupation Catholic saint Clergyman Christian Writer From Europe Roman Empire Authentication Score 0 More information on Authentication Score coming soon. Citation Saint Jerome. "Letter LIII: To Paulinus." Letters of Saint Jerome. 394. Citation text copied to clipboard.