Jean Dubuffet disliked authority from a very early age. He left home at 17, failed to complete his art education, and wavered for many years between painting and working in his father's wine business. He would later be a successful propagandist, gaining notoriety for his attacks on conformism and mainstream culture, which he described as "asphyxiating." He was attracted to the art of children and the mentally ill, and did much to promote their work, collecting it and promulgating the notion of Art Brut. His early work was influenced by that of outsiders, but it was also shaped by the interests in materiality that preoccupied many post-war French artists associated with the Art Informel movement. In the early 1960s, he developed a radically new, graphic style, which he called "Hourloupe," and would deploy it on many important public commissions, but he remains best known for the thick textured and gritty surfaces of his pictures from the 1940s and '50s.