The general advertisers and their agencies know almost nothing for sure, because they cannot measure the results of their advertising. They worship at the altar of creativity, which really means 'originality': The most dangerous word in the lexicon of advertising
David OgilvyNowadays it is the fashion to pretend that no single individual is ever responsible for a successful advertising campaign. This emphasis on "teamwork" is bunkum - a conspiracy of the mediocre majority.
David OgilvyThe creative process requires more than reason. Most original thinking isn't even verbal. It requires 'a groping experimentation with ideas, governed by intuitive hunches and inspired by the unconscious.' The majority of business men are incapable of original thinking because they are unable to escape from the tyranny of reason. Their imaginations are blocked.
David OgilvyThe relationship between a manufacturer and his advertising agency is almost as intimate as the relationship between a patient and his doctor. Make sure that you can life happily with your prospective client before you accept his account.
David Ogilvy