“The worst evil which can befall the artist is that his work should appear good in his own eyes.”

“Every now and then go away, have a little relaxation, for when you come back to your work your judgment will be surer. Go some distance away because then the work appears smaller and more of it can be taken in at a glance and a lack of harmony and proportion is more readily seen.”

“The painter will produce pictures of little merit if he takes the works of others as his standard.”

“I have offended God and mankind because my work didn't reach the quality it should have.”

“The artist sees what others only catch a glimpse of.”

“Anyone who conducts an argument by appealing to authority is not using his intelligence; he is just using his memory.”

“He who does not oppose evil......commands it to be done.”