DAVID OGILVY's PHILOSOPHY by E. H. Edersheim

“As Ken Roman, the former chairman of [Ogilvy & Mather], describes the O&M culture: ‘The Ogilvy philosophy rested on four pillars: Research. Results. Creative brilliance. Professional discipline. Ogilvy believed in studying precedents and codifying experience into principles—treating advertising as a profession with a body of knowledge.’”