A child can teach an adult three things: to be happy for no reason, to always be busy with something, and to know how to demand with all his might that which he desires.
True teaching cannot be learned from text-books any more than a surgeon can acquire his skill by reading about surgery.
I have long felt that the way to keep children out of trouble is to keep them interested in things. Lecturing to children is no answer to delinquency. Preaching won’t keep youngsters out of trouble, but keeping their minds occupied will.