This from Donald Westlake:
“Publishing is the only industry I can think of where most of the employees spend most of their time stating with great self-assurance that they don’t know how to do their jobs. “I don’t know how to sell this,” they explain, frowning, as though it’s your fault. “I don’t know how to package this. I don’t know what the market is for this book. I don’t know how we’re going to draw attention to this.” In most occupations, people try to hide their incompetence; only in publishing is it flaunted as though it were the chief qualification for the job.”
“If it weren’t for received ideas, the publishing industry wouldn’t have any ideas at all.”