From a journal entry dated June 22, 1863:
"The first quality in a picture is to be a delight to the eyes. This does not mean there need be no sense in it; it is like poetry which, if it offend the ear, all sense in the world will not save from being bad. They speak of having an ear for music: not every eye is fit to taste the subtle joys of painting. The eyes of many people are dull or false; they see objects literally, of the exquisite they see nothing."
The journals ends on this date. Seven weeks later, on August 13, 1863, Delacroix died at the age of 65.