John Locke (1728). “Two Treatises of Government: In the Former the False Principles & Foundation of Sir Robert Filmer & His Followers, are Detected & Overthrown; the Latter is an Essay Concerning the True Original, Extent & End of Civil Government”, p.49
John Adams, Charles Francis Adams (1851). “The Works of John Adams, Second President of the United States: With a Life of the Author, Notes and Illustrations”, p.422