They do, indeed, often bring men into collision with other men.

But, though sometimes vexed and irritated by the conduct of a neighbor, a client, or a patient, they feel not half the bitterness of the solicitude and anxiety which come to the teacher through the criminality of his pupil.

In ordinary cases he not only feels responsible for efforts, but for their results; and when, notwithstanding all his efforts, his pupils will do wrong, his spirit sinks with an intensity of anxious despondency which none but a teacher can understand.
This feeling of something very like _moral accountability for the guilt of other persons_ is a continual burden.

The teacher in the presence of the pupil never is free from it.

It links him to them by a bond which perhaps he ought not to sunder, and which he can not sunder if he would.
And sometimes, when those committed to his charge are idle, or faithless, or unprincipled, it wears away his spirits and his health together.