Most artists, whether in religion, music, literature, painting, or what not, are shopkeepers in disguise.
 Samuel Butler, The Note-Books of Samuel Butler (1912). copy citation

Context

“He should have lost all save a small competence and know what a vantage ground it is to be an outcast. Destruction and Death say they have heard the fame of Wisdom with their ears, and the philosopher must have been close up to these if he too would hear it. The Artist and the Shopkeeper Most artists, whether in religion, music, literature, painting, or what not, are shopkeepers in disguise. They hide their shop as much as they can, and keep pretending that it does not exist, but they are essentially shopkeepers and nothing else. Why do I try to sell my books and feel regret at never seeing them pay their expenses if I am not a shopkeeper?” source