“The actual work of the teacher consists of the awakening and setting in action the mind of the pupil, the arousing of his self-activities… All explanation and exposition are useless except as they excite and direct the pupil in his own thinking…We are now ready to state the law of teaching: Excite and direct the self-activities of the pupil, and as a rule tell him nothing that he can learn for himself.”

~John Milton Gregory
~The Seven Laws of Teaching, p.84