He could only paint extremely beautiful pictures.

That was the major part of his vitality.
In minor ways he may have been, upon occasions, a fool.

But he was never a fool on canvas.

He said everything there, and said it to perfection, for those who could read, for those who can read, and for those who will be able to read five hundred years hence.

Why expect more from him?
Why be disappointed in him?
One does not expect a wire-walker to play fine billiards.