(after savaging a JFCooper story, Mark Twain concludes with five further rules for writing:)

In addition to these large rules, there are some little ones. These require that the author shall:

12. Say what he is proposing to say, not merely come near it.

13. Use the right word, not its second cousin.

14. Eschew surplusage.

15. Not omit necessary details.

16. Avoid slovenliness of form.

17. Use good grammar.

18. Employ a simple and straightforward style.

Mark Twain