I have thought about it a great deal, and the more I think, the more certain I am that obedience is the gateway through which knowledge, yes, and love, too, enter the mind of the child.
Anne Sullivan (1866–1936), U.S. educator of deaf and blind. Letter, March 11, 1887. published in Helen Keller, The Story of My Life, pt. 3, ch. 3 (1903).
Her student Helen Keller, Sullivan wrote, had "tyrannized over everybody ... like all tyrants she holds tenaciously to her divine right to do as she pleases."