Reading Annie Dillard's inspiring and reassuring book of that name, and found this nugget, which made me feel so much better about how slowly I'm editing my novel:
Thomas Mann was a prodigy of production. working full time, he wrote a page a day. that is 365 pages a year, for he did write every day -- a good-sized book a year. At a page a day, he was one of the most prolific writers who ever lived.