There is something in painting which cannot be explained, and that something is the essential. You come to Nature with your theories, and she knocks … - Pierre-Auguste Renoir

I arrange my subject as I want it, then I go ahead and paint it, like a child. I want a red to be sonorous—to sound, like a bell; if it doesn't turn out that way, I put more reds or other colors till I get it. I am no cleverer than that. I have no rules and no methods; any one can look over my materials or watch how I paint—he will see that I have no secrets. I look at a nude; there are myriads of tiny tints. I must find the ones that will make the flesh on my canvas live and quiver.
Nowadays they want to explain everything. But if they could explain a picture it wouldn't be art. Shall I tell you what I think are the two qualities of a work of art? It must be indescribable and it must be inimitable. ...So in our Gothic architecture: each column is a work of art, because the old French monk who set it up and carved its capital did what he liked—not doing everything alike, as... when things are made by machinery or by rules, but each thing different—like the trees in the forest.
The work of art must seize upon you, wrap you up in itself, carry you away. It is the means by which the artist conveys his passion; it is the current which he puts forth which sweeps you along in his passion.

Out-of-doors there is a greater variety of light than in the studio, where the light is always the same. But that is just the trouble; one is carried away by the light, and besides, one can't see what one is doing.

What are we supposed to do [reacting furiously on art-critic Jules Castagnary who proclaimed the so-called new School of Impressionism, 29 April 1874 in the Paris journal 'Le Siècle'] about these stupid literary people who will never understand that painting is a craft! You make it with materials, not ideas! The ideas come afterwards, when the painting is finished.