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”
John Henry Newman, Gerard Tracey (1999). “The Letters and Diaries of John Henry Newman: Tract 90 and the Jerusalem Bishopric, January 1841-April 1842”, p.555, Oxford University Press
Benjamin Whichcote, Anthony Tuckney (1753). “Moral and religious aphorisms [collected by J. Jeffery from the papers of B. Whichcote]. Now re-publ., with additions, by S. Salter. To which are added, Eight letters: which passed between dr. Whichcote, and dr. Tuckney”, p.64