You've heard the phrase: "Gonna rock your world!". It's kind of stupid and I'm sorry to associate it with Gris. Yet, without Juan Gris, the movement known as Cubism would not have been so influential. His training in the sciences and architecture gave him the discipline and humanistic worldview to create Cubist works of great visual (if not intellectual) interest. Many illustrators who work in a semi-abstract idiom think they have Picasso to thank. They should instead thank Juan Gris.