John Locke (1825). “An Essay Concerning Human Understanding: An analysis of Mr. Locke's Doctrine of ideas .... A defense of Mr. Locke's Opinion concerning personal identity .... A treatise on the conduct of the understanding. Some thoughts concerning reading and study for a gentleman. Elements of natural philosophy. A new method of a common place book. Extracted from the author's works. With a life of the author”
Rick Riordan (2013). “Demigods and Monsters: Your Favorite Authors on Rick Riordan's Percy Jackson and the Olympians Series”, p.111, BenBella Books, Inc.
John Wilkins (1802). “The Mathematical and Philosophical Works of the Right Rev. John Wilkins, Late Lord Bishop of Chester: To which is Prefix'd the Author's Life, and an Account of His Works; in Two Volumes”, p.134