The whole art of teaching is only the art of awakening the natural curiosity of young minds for the purpose of satisfying it afterwards; and curiosity itself can be vivid and wholesome only in proportion as the mind is contented and happy.
Anatole France, The Crime of Sylvestre Bonnard (vol. 1 of The Works of Anatole France), trans. Lafcadio Hearn, part 2, chapter 4, June 6, 1860, p. 198 (1924).