according to the canon, either by the division of heads or faces, as most
convenient. By these means, he gets the general divisions in the easiest
and most expeditious way. But could he not obtain them without such aid?
He would answer, Yes, by the eye alone; but it would be a waste of time
were he so to proceed, since he would have to do, and undo, perhaps twenty
times, before he could erect this simple scaffolding; whereas, by applying
these rules, whose general truth is already admitted, he accomplishes his
object in a few minutes. Here we admit the use of the canon, and admire
the facility with which it enables his hand, almost without the aid of a
thought, thus to lay out his work. But here ends the science; and here
begins what may seem to many the work of mutilation: a leg, an arm, a
trunk, is increased, or diminished; line after line is erased, or
retrenched, or extended, again and again, till not a trace remains of the
original draught. If he is asked now by what he is guided in these
innumerable changes, he can only answer, By the feeling within me. Nor can
he better tell _how_ he knows when he has _hit the mark_. The same feeling
responds to its truth; and he repeats his attempts until that is
satisfied.

It would appear, then, that in the Mind alone is to be found the true
or ultimate Rule,--if, indeed, that can be called a rule which
changes its measure with every change of character. It is therefore
all-important that every aid be sought which may in any way contribute
to the due developement of the mental powers; and no one will doubt
the efficiency here of a good general education. As to the course of
study, that must be left in a great measure to be determined by the
student; it will be best indicated by his own natural wants. We
may observe, however, that no species of knowledge can ever be
_oppressive_ to real genius, whose peculiar privilege is that of
subordinating all things to the paramount desire. But it is not likely