"But I must work on in full calmness and serenity... The world concerns me only in so far as I feel a certain debt and duty towards it, because I have walked on the earth for thirty years, and out of gratitude want to leave some souvenir in the shape of drawings or pictures, not made to please a certain tendency in art, but to express a sincere human feeling. So this work is the aim-and through concentration upon that one idea, everything one does is simplified. Now the work goes slowly-a reason the more to lose no time."