And when it comes to drawing, the great artists have always confined themselves to the qualities in nature that the tool they were drawing with was capable of expressing, and no others. Whether working with pen, pencil, chalk, or charcoal, they always created a convention within which unlimited expression has been possible.
To sum up, academic drawing is all that can be really taught, and is as necessary to the painter as the practising of exercises is to the musician, that his powers of observation and execution may be trained. But the vital matter of art is not in all this necessary training. And this fact the student should always keep in mind, and be ever ready to give rein to those natural enthusiasms which, if he is an artist, he will find welling up within him. The danger is that the absorbing interest in his academic studies may take up his whole attention, to the neglect of the instinctive qualities that he should possess the possession of which alone will entitle him to be an artist.
VII
THE STUDY OF DRAWING
We have seen that there are two extreme points of view from which the representation of form can be approached, that of outline directly related to the mental idea of form with its touch association on the one hand, and that of mass connected directly with the visual picture on the retina on the other.
Now, between these two extreme points of view there are an infinite variety of styles combining them both and leaning more to the one side or the other, as the case may be. But it is advisable for the student to study both separately, for there are different things to be learnt and different expressive qualities in nature to be studied in both.
From the study of outline drawing the eye is trained to accurate observation and learns the expressive value of a line. And the hand is also trained to definite statement, the student being led on by degrees from simple outlines to approach the full realisation of form in all the complexity of light and shade.
But at the same time he should study mass drawing with paint from the purely visual point of view, in order to be introduced to the important study of tone values and the expression of form by means of planes. And so by degrees he will learn accurately to observe and portray the tone masses (their shapes and values) to which all visual appearances can be reduced; and he will gradually arrive at the full realisation of form—a realisation that will bring him to a point somewhat similar to that arrived at from the opposite point of view of an outline to which has been added light and shade, &c.