I can't stand callow amateurs who aren't sufficiently interested in the craft of advertising to assume the posture of students.
David OgilvyAdvertising people who ignore research are as dangerous as generals who ignore decodes of enemy signals.
David OgilvyNever write an advertisement which you wouldn't want your own family to read. You wouldn't tell lies to your own wife. Don't tell them to mine. Do as you would be done by.
David Ogilvy