If you tell lies about a product, you will be found out - either by the Government, which will prosecute you, or by the consumer, who will punish you by not buying your product a second time.
David OgilvyGood products can be sold by honest advertising. If you don't think the product is good, you have no business to be advertising it.
David OgilvyDo not address your readers as though they were gathered together in a stadium. When people read your copy, they are alone. Pretend you are writing to each of them a letter on behalf of your client.
David Ogilvy