It must also be open and frank; no insinuations, no hints, no surmises, but plain, honest, open dealing.
In many cases the communication may be made most delicately and most successfully in writing.

The more delicately you touch the feelings of your pupils, the more tender these feelings will become.

Many a teacher hardens and stupefies the moral sense of his pupils by the harsh and rough exposures to which he drags out the private feelings of the heart.
A man may easily produce such a state of feeling in his schoolroom, that to address even the gentlest reproof to any individual, in the hearing of the next, would be a most severe punishment; and, on the other hand, he may so destroy that sensitiveness that his vociferated reproaches will be as unheeded as the idle wind.
If, now, the teacher has taken the course recommended in this chapter--if he has, by his general influence in the school, done all in his power to bring the majority of his pupils to the side of order and discipline--if he has then studied, attentively and impartially, the characters of those who can not thus be led--if he has endeavored to make them his friends, and to acquire, by every means, a personal influence over them--if, finally, when they do wrong, he goes plainly, but in a gentle and delicate manner, to them, and lays before them the whole case--if he has done all this, he has gone as far as moral influence will carry him.

My opinion is, that this course, faithfully and judiciously pursued, will, in almost all instances, succeed; but it will not in all; and where it fails, there must be other, and more vigorous and decided measures.

What these measures of restraint or punishment shall be must depend upon the circumstances of the case; but in resorting to them, the teacher must be decided and unbending.
The course above recommended is not trying lax and inefficient measures for a long time in hopes of their being ultimately successful, and then, when they are found not to be so, changing the policy.