Daniel Burleigh Parkhurst, The Painter in Oil
“ The relative importance, strength, force, power, value, of a touch of color to make itself felt in the whole—that is its value. A weak value is a note which does not make itself felt; a strong value is one which does. A false value is a touch of color which has not its proper relation to the other spots or masses of color in the picture, considered as light and dark—not as color per se. ”
