Authors:

Don't give your opinions about Art and the Purpose of Life. They are of little interest and, anyway, you can't express them. Don't analyze yourself. Give the relevant facts and let your readers make their own judgments. Stick to your story. It is not the most important subject in history but it is one about which you are uniquely qualified to speak.

Evelyn Waugh's review of Stephen Spender "World within World: The Autobiography of Stephen Spender" in "The Tablet", May 5, 1951.
Don't give your opinions about Art and the Purpose of Life. They are of little interest and, anyway, you can't express them. Don't analyze yourself. Give the relevant facts and let your readers make their own judgments.