active 19th century Harry Willson, The Use of a Box of Colours, in a Practical Demonstration on Composition…
“ The inexhaustible and unceasingly varying beauties of art begin to develope themselves most when the study of Light and Shade commences; and the student is amply recompensed for the time he has devoted to obtaining a knowledge of correctness in outline. It is now that he sees Nature with other and improved vision—with clearer conceptions of her character—in her sunny and joyous revellings, as in her vast and awful sublimity.Drawing gives form; Colour, its visible quality; and Light and Shade, its solidity. ”
