- Anthony Caro: It's terribly difficult to put down any rules about Picasso. I mean, I think that's the fun of Picasso, the nerve of Picasso, the courage of Picasso, they're all absolutely unbeatlable. I don't know anybody that could change their whole artistic persona so variously and so quickly as Picasso.
- Dominique Bozo: The knowledge of his work was completely obscured by the myth of the man. The power he held in his life inevitably hindered his contemporaries, because he dominated both the art scene and the market.
- Elaine de Kooning: The scale of his brushstrokes was absolutely new. Before Picasso, I think, brushstrokes were all much smaller. Picasso applied paint with these huge sweeps, and I think that was of immense importance as an influence on American artists, Avant-Garde artists.
- Clement Greenberg: Cubism is the source, I would say, and the underlying discipline, it's kind of canon, or the canons of all sophisticated abstract painting, all sophisticated abstract sculpture.