Tyranny or slavery, born of selfishness, are the two educational methods of parents; all gradations of tyranny or slavery.[Das sind, aus Eigennutz geboren, die zwei Erziehungsmittel der Eltern: Tyrannei und Sklaverei in allen Abstufungen.]
Source:Letter to Elli Hermann (Prague, autumn 1921); Letters to Friends, Family, and Editors (Schocken Books, ed. 1977), Page 294