Isaac Asimov, an extremely prolific (and enduringly successful) writer of hundreds of books, took part in a conference in the early 1980s.
Shannon Roe was there, and wrote down notes about what Asimov said about writing. Now, her notes have been presented in the article "How to write a lot" . A little gem, this document, which shows how Asimov saw himself and his work.
Typical of his self-deprecating humor is this quote:
"I can't tell you how to be a good writer," he had begun, "because nobody ever says that I'm a good writer. It's always 'prolific writer.' That's a polysyllabic term for 'hack.' "
Read the rest, and be a little wiser.