John Erskine: Zitate auf Englisch
Quelle: The Moral Obligation to be Intelligent (1915), pp. 26-27
Quelle: The Moral Obligation to be Intelligent (1915), p. 5
Quelle: The Moral Obligation to be Intelligent (1915), p. 30
Quelle: The Moral Obligation to be Intelligent (1915), p. 3