“I asked an indifferent copywriter what books he had read about advertising. He told me that he had not read any; he preferred to rely on his own intuition. ‘Suppose,’ I asked, ’your gall-bladder has to be removed this evening. Will you choose a surgeon who has read some books on anatomy and knows where to find your gall-bladder, or a surgeon who relies on his intuition? Why should our clients be expected to bet millions of dollars on your intuition?”
