Variation does not mean evolution. If an artist varies his mode of expression this only means that he has changed his manner of thinking, and in changing, it might be for the better or it might be for the worse. Picasso Speaks (1923)
We all know that Art is not truth. Art is a lie that makes us realize truth, at least the truth that is given us to understand. The artist must know the manner whereby to convince others of the truthfulness of his lies. If he only shows in his work that he has searched, and re-searched, for the way to put over lies, he would never accomplish anything. Picasso Speaks (1923)