It is often charged that advertising can persuade people to buy inferior products. So it can – once. But the consumer perceives that the product is i… - David Ogilvy

The best way to settle such arguments is to measure the selling effectiveness of your campaign at regular intervals, and to go on running it until the research shows that it has worn out.

Today, almost all our layouts look “addy.” Too bad. How do you sell editorial layouts to clients? Try saying, “Would you like the editors of a half a dozen magazines to devote a whole page to your product?” The client will reply, “Yes, of course. But it is impossible.” You say, “It is possible. You buy the space and here is your editorial. Better than any advertisement, isn't it?”

Rosser Reeves: ‘Do you want fine writing? Do you want masterpieces? Or do you want to see the goddamned sales curve start moving up?