Henri Matisse, Notes of a Painter, 1908

'The chief aim of color should be to serve expression as well as possible. I put down my colors without a preconceived plan. If at the first step and perhaps without my being conscious of it one tone has particularly pleased me, more often than not when the picture is finished I will notice that I have respected this tone while I have progressively altered and transformed the others. I discover the quality of colors in a purely instinctive way. To paint an autumn landscape I will not try to remember what colors suit this season, I will be inspired only by the sensation that the season gives me; the icy clearness of the sour blue sky will express the season just as well as the tonalities of the leaves. My sensation itself may vary, the autumn may be soft and warm like a protracted summer or quite cool with a cold sky and lemon yellow trees that give a chilly impression and announce winter. My choice of colors does not rest on any scientific theory; it is based on observation, on feeling, on the very nature of each experience.

Henri Matisse, 'Notes of a Painter,' 1908 Originally published as 'Notes d'un peintre' in La Grande Revue (Paris), 25 December 1908,pp 731-745. This English translation is from Matisse: His Art and His Public by Alfred H. Barr, Jr., copyright 1951 by The Museum of Modern Art, New York, and reprinted with its permission.