“The people heard it, and approved the doctrine, and immediately practiced the contrary.”

“He had been brought up to it from a boy, his father, as I have heard, accustoming his children to dispute with one another for his diversion, while sitting at the table after dinner, but I think the practice was not wise; for, in the course of my observation, these disputing, contradicting, and confuting people are generally unfortunate in their affairs. They get victory sometimes, but they never get good will, which would be of more use to them.”

“A man must have a good deal of vanity who believes, and a good deal of boldness who affirms, that all the doctrines he holds are true, and all he rejects are false.”

“And, lastly (I may as well confess it, since my denial of it will be believed by nobody), perhaps I shall a good deal gratify my own vanity. Indeed, I scarce ever heard or saw the introductory words, "Without vanity I may say," etc., but some vain thing immediately followed. 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 altogether absurd if a man were to thank God for is vanity among the other comforts of life.”

“Diplomacy is seduction in another guise, Mr. Adams. One improves with practice.”

“Tricks and treachery are the practice of fools that don't have brains enough to be honest.”

“some books against Deism fell into my hands ... it happened that they wrought an effect on me quite contrary to what was intended by them; for the arguments of the Deists, which were quote to be refuted, appeared to me much stronger than the refutations; in short, I soon became a thorough Deist.”