It is flagrantly dishonest for an advertising agent to urge consumers to buy a product which he would not allow his own wife to buy.

I had a friend who was the King's surgeon in England. One day I asked him what makes a great surgeon. He replied, "What distinguishes a great surgeon is his knowledge. He knows more than other surgeons. During an operation he finds something which he wasn't expecting, recognizes it and knows what to do about it." It's the same thing with advertising people. The good ones know more. How do you get to know more? By reading books about advertising. By picking the brains of people who know more than you do. From the Magic Lanterns. And from experience.

Candor compels me to admit that I have no conclusive research to support my view that jingles are less persuasive than the spoken word. You'd run like hell if a salesman came to your door and began singing at you. Why do it in advertising?

I never tell one client that I cannot attend his sales convention because I have a previous engagement with another client; successful polygamy depends upon pretending to each spouse that she is the only pebble on your beach.

It has taken more than a hundred scientists two years to find out how to make the product in question; I have been given thirty days to create its personality and plan its launching. If I do my job well, I shall contribute as much as the hundred scientists to the success of this product.

Never stop testing, and your advertising will never stop improving. Testing was used in advertising decades ago. The internet has made testing so easy that every online marketer can use it to improve advertising results. Google content experiment is a free tool for you to do split testing.

Don’t just create content to get credit for being clever — create content that will be helpful, insightful, or interesting for your target audience.