I believe it safe to say that all progress must lead, not to further progress, but finally to the negation of progress, a return to the point of depa… - Eugène Delacroix

The landscape [in the painting 'The Bathers', 1853, by Courbet ] is of an extraordinary vigor, but Courbet has done no more than enlarge a study exhibited there, near his large canvas; the conclusion is that the figures [the two bathers in the painting] were put in afterwards and without connection with their surroundings. This brings up the question of harmony between the accessories and the principal object, a thing lacking in the majority of great painters, [15 April 1853]

In every art we are always obliged to return to the accepted means of expression, the conventional language of the art. What is a black-and-white drawing but a convention to which the beholder has become so accustomed that with his mind's eye he sees a complete equivalent in the translation from nature?

Weaknesses in men of genius are usually an exaggeration of their personal feeling; in the hands of feeble imitators they become the most flagrant blunders. Entire schools have been founded on misinterpretations of certain aspects of the masters. Lamentable mistakes have resulted from the thoughtless enthusiasm with which men have sought inspiration from the worst qualities of remarkable artists because they are unable to reproduce the sublime elements in their work.