“A writer writes what he knows, in ways that are natural to him.”
Source: Shifu: You'll Do Anything for a Laugh and Other Stories
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Mo Yan 19
Chinese novelist 1955Related quotes
On how she defines “author” in “Interview with Mystery Author Lucha Corpi” http://latinola.com/story.php?story=8074 in ¡Latino LA! (2009 Dec 4)

“The best way a writer can serve a revolution is to write as well as he can.”
Writing and Being (1991)
Context: Camus dealt with the question best. He said that he liked individuals who take sides more than literatures that do. 'One either serves the whole of man or does not serve him at all. And if man needs bread and justice, and if what has to be done must be done to serve this need, he also needs pure beauty which is the bread of his heart.' So Camus called for 'Courage in and talent in one's work.' And Márquez redefined tender fiction thus: The best way a writer can serve a revolution is to write as well as he can.
I believe that these two statements might be the credo for all of us who write. They do not resolve the conflicts that have come, and will continue to come, to contemporary writers. But they state plainly an honest possibility of doing so, they turn the face of the writer squarely to her and his existence, the reason to be, as a writer, and the reason to be, as a responsible human, acting, like any other, within a social context.

“A writer should write what he has to say and not speak it.”
Nobel Prize Speech (1954)

“The best life for a writer is the life which helps him write the best books he can.”
Source: Flaubert's Parrot

Source: On a writer’s responsibility in “The Literature of Uprootedness: An Interview with Reinaldo Arenas” https://www.newyorker.com/books/page-turner/the-literature-of-uprootedness-an-interview-with-reinaldo-arenas in The New Yorker (2013 Dec 5)
Letter to his brother Jeff, from Hawaii (7 April 1941); p. 11
To Reach Eternity (1989)

Paris Review interview (1958)
Context: Let the writer take up surgery or bricklaying if he is interested in technique. There is no mechanical way to get the writing done, no shortcut. The young writer would be a fool to follow a theory. Teach yourself by your own mistakes; people learn only by error. The good artist believes that nobody is good enough to give him advice. He has supreme vanity. No matter how much he admires the old writer, he wants to beat him.