A great many people seem to delight most in what they least understand. - William Hogarth

Any two opposite colours of the rainbow (eg yellow and blue) , form a third between them, thus imparting to each other their peculiar qualities . The sight of what they were originally is quite lost, and instead, a most pleasing green is found, which colour, nature has chosen for the vestment of the earth, and with the beauty of which the eye never tires.

On why our features sag, It is by the natural and unaffected movements of the muscles, caused by the passions of the mind, that every man's character would in some measure be written in his face, by the time he arrives at forty years of age.

[T]he connoisseurs and I are at war you know; and because I hate them, they think I hate Titian—and let them!