William Penn (1857). “Primitive Christianity revived in the faith and practice of the people called Quakers: Written in testimony to the present dispensation of God through them to the world that prejudices may be removed, the simple informed, the well-inclined encouraged, and the truth, and its innocent friends rightly represented”
Charles Sanders Peirce (1933). “Collected Papers of Charles Sanders Peirce: Exact logic (Published papers).. The Simplest mathematics”, Harvard University Press