Sculpture, painting, architecture, he said, are but subordinate branches of draughtsmanship.

And he went so far as to assert that the mechanical arts, with engineering and fortification, nay, even the minor arts of decoration and costume, owe their existence to design.

The more we reflect upon this apparent paradox, the more shall we feel it to be true.

At any rate, there are no products of human thought and feeling capable of being expressed by form which do not find their common denominator in a linear drawing.

The simplicity of a sketch, the comparative rapidity with which it is produced, the concentration of meaning demanded by its rigid economy of means, render it more symbolical, more like the hieroglyph of its maker's mind, than any finished work can be.