Indeed I scarce ever heard or saw the introductory Words, Without Vanity I may say, etc. but some vain thing immediately follow'd. Most People dislike Vanity in others whatever Share they have of it themselves, but I give it fair Quarter wherever I meet with it, being persuaded that it is often productive of Good to the Possessor and to others that are within his Sphere of Action: And therefore in many Cases it would not be quite absurd if a Man were to thank God for his Vanity among the other Comforts of Life.

Part I, p. 2 - The Autobiography (1817)