“The most important part of Christian piety is taught by him who inflames men with a love for it. A wise king, in educating his son for true wisdom, spends much more time on motivation than on information, as if the love of wisdom were almost the attainment of it.”

—Desiderious Erasmus (c. 1466-1536), from a letter to Paul Voltz, dated August 14, 1518, later published as the preface to Erasmus’ Enchridion.