"Finally, down here in the postscript, you mention something that may help me solve one of my problems. Why didn't you begin your letter with 'but what's the use?' Any advertising man who is guilty of perpetrating such drivel as you have sent me has something wrong with his medulla oblongata. You don't need a letter giving our latest doings. What you need is a quart of iodine in your thyroid gland." -Dale Carnegie to the Manager of a Radio Department in the State of Indiana, United States.