I must learn how to express the gentle vibration of things, their roughened textures, their intricacies. I have to find an expression for that in my drawing, too, in the way I sketched my nudes here in Paris, only more original, more subtly observed. The strange quality of expectation that hovers over muted things [skin, Otto's Otto Modersohn forehead, fabrics, flowers]; I must try to get hold of the great and simple beauty of all that. In general, I must strive for the utmost simplicity united with the most intimate power of observation. That's where greatness lies.