His selections were ordered by importance, and he saw the earliest ones as being needed to achieve the latter ones. They were also chosen for simplicity, as each covers a small and defined area of character.
1. Temperance. Eat not to dullness; drink not to elevation.
2. Silence. Speak not but what may benefit others or yourself; avoid trifling conversation.
3. Order. Let all your things have their places; let each part of your business have its time.
4. Resolution. Resolve to perform what you ought; perform without fail what you resolve.
5. Frugality. Make no expense but to do good to others or yourself; i.e., waste nothing.
6. Industry. Lose no time; be always employ'd in something useful; cut off all unnecessary actions.
7. Sincerity. Use no hurtful deceit; think innocently and justly, and, if you speak, speak accordingly.
8. Justice. Wrong none by doing injuries, or omitting the benefits that are your duty.
9. Moderation. Avoid extremes; forbear resenting injuries so much as you think they deserve.
10. Cleanliness. Tolerate no uncleanliness in body, clothes, or habitation.
11. Tranquillity. Be not disturbed at trifles, or at accidents common or unavoidable.
12. Chastity. Rarely use venery but for health or offspring, never to dullness, weakness, or the injury of your own or another's peace or reputation.
13. Humility. Imitate Jesus [Caesar] and Socrates.
Comment: To learn more about improving ourselves and accurately evaluating what's going on inside our minds (and the minds of those around us), read the discussion on our forum based on Timothy Wilson's book, "Strangers to Ourselves: Discovering the Adaptive Unconscious".
See also: The intelligence of self observation and self-awareness