pupils were going on undisturbed in their pursuits. The exercises in
writing were not interrupted or deranged. This is a point of fundamental
importance; for, if what I should say on the subject of exercising
ingenuity and contrivance in teaching should be the means, in any case,
of leading a teacher to break in upon the regular duties of his school,
and destroy the steady uniformity with which the great objects of such
an institution should be pursued, my remarks had better never have been
written. There may be variety in methods and plan, but, through all this
variety, the school, and every individual pupil of it, must go steadily
forward in the acquisition of that knowledge which is of greatest
importance in the business of future life. In other words, the
variations and changes admitted by the teacher ought to be mainly
confined to the modes of accomplishing those permanent objects to which
all the exercises and arrangements of the school ought steadily to aim.
More on this subject, however, in another chapter.

I will mention one other circumstance, which will help to explain the
difference in interest and pleasure with which teachers engage in their
work. I mean the different views they take _of the offenses of their
pupils_. One class of teachers seem never to make it a part of their
calculation that their pupils will do wrong, and when, any misconduct
occurs they are discontented and irritated, and look and act as if some
unexpected occurrence had broken in upon their plans. Others understand
and consider all this beforehand. They seem to think a little, before
they go into their school, what sort of beings boys and girls are, and
any ordinary case of youthful delinquency or dullness does not surprise
them. I do not mean that they treat such cases with indifference or
neglect, but that they _expect_ them, and _are prepared for them_. Such
a teacher knows that boys and girls are the _materials_ he has to work
upon, and he takes care to make himself acquainted with these materials,