A teacher may, indeed, by the force of mere authority, so control his pupils as to preserve order in the schoolroom, and secure a tolerable progress in study, but the progress will be slow, and the cultivation of moral principle must be, in such a case, entirely neglected.

The principles of duty can not be inculcated by fear; and though pain and terror must in many instances be called in to coerce an individual offender, whom milder measures will not reach, yet these agents, and others like them, can never be successfully employed as the ordinary motives to action.

They can not produce any thing but mere external and heartless obedience in the presence of the teacher, with an inclination to throw off all restraint when the pressure of stern authority is removed.
We should all remember that our pupils are but for a very short time under our direct control.

Even when they are in school the most untiring vigilance will not enable us to watch, except for a very small portion of the time, any one individual.

Many hours of the day, too, they are entirely removed from our inspection, and a few months will take them away from us altogether.