Advertising is a business of words, but advertising agencies are infested with men and women who cannot write. They cannot write advertisements, and they cannot write plans. They are helpless as deaf mutes on the stage of the Metropolitan Opera. – David Ogilvy
Remove advertising, disable a person or firm from proclaiming its wares and their merits, and the whole of society and of the economy is transformed. The enemies of advertising are the enemies of freedom. – David Ogilvy