Legendary marketer David Ogilvy generated over $864 million for his clients. He was a British advertiser known as "The Father of Advertising.” Here are 10 writing rules he lived by: In 1982, Ogilvy sent this 1-page memo to his staff: And it starts with a clear promise: > "The better you write, the higher you will go in Ogilvy & Mather. People who think well, write well. Good writing is not a natural gift. You have to learn to write well." Now, replace "Ogilvy & Mather" with any company,…