How then was this spiritual training to be given? I made the children memorize and recite hymns, and read to them from books on moral training. But that was far from satisfying me. As I came into closer contact with them I saw that it was not through books that one could impart training of the spirit. Just as physical training was to be imparted through physical exercise even so the training of the spirit was possible only through the exercise of the spirit. And the exercise of the spirit entirely depended on the life and character of the teacher. The teacher had always to be mindful of his p's and q's, whether he was in the midst of his boys or not. It is possible for a teacher situated miles away to affect the spirit of the pupils by his way of living. It would be idle for me, if I were a liar, to teach boys to tell the truth. A cowardly teacher would never succeed in making his boys valiant, and a stranger to self- restraint could never teach his pupils the value os self-restraint. I saw therefore that I must be an eternal object-lesson to the boys and girls living with me. They thus became my teachers, and I learnt I must be good and live straight, if only for their sakes.
(Training of the Spirit)from Gandhiji's Autobiography