He [ Richard Wagner ] was very happy but very nervous [Renoir proposed him to paint his portrait]... In short, I think I spent my time well, thirty five minutes is not long, but if I had stopped sooner it would have been better, because my model [Wagner] ended up by losing some of his good humor, and he became stiff. I followed these changes too closely [in the portrait]... At the end Wagner asked to see it. He said 'Ah! Ah! It's true that I look like a Protestant minister.