"When writing goes painfully, when it's hideously difficult, and one
feels real despair (ah, the despair, silly as it is, is real!)--then
naturally one ought to continue with the work; it would be cowardly to
retreat. But when writing goes smoothly--why then one certainly should
keep on working, since it would be stupid to stop. Consequently one is
always writing or should be writing." (p. 277, Joyce Carol Oates,
Journals)