I came across a few choice quotes today from advertising legend David Ogilvy (1911-1999). Although at least one now appears quite dated in tone, I think the message is important, so I have left it intact, in all its mid-60s glory.
How to sell: "A good advertisement is one which sells the product without drawing attention to itself."
The need for sales: "In the modern world of business, it is useless to be a creative original thinker unless you can also sell what you create. Management cannot be expected to recognize a good idea unless it is presented to them by a good salesman."
Honesty in advertising: "Never write an advertisement which you wouldn't want your family to read. You wouldn't tell lies to your own wife. Don't tell them to mine."
The use of humor: "The best ideas come as jokes. Make your thinking as funny as possible."