John Locke, John W. Yolton (1977). “The Locke Reader: Selections from the Works of John Locke with a General Introduction and Commentary”, p.42, CUP Archive
Ernst Haeckel (1887). “The History of Creation, Or, The Development of the Earth and Its Inhabitants by the Action of Natural Causes: A Popular Exposition of the Doctrine of Evolution in General, and of that of Darwin, Goethe, and Lamarck in Particular”
Charles Sanders Peirce, Nathan Houser, Christian J.W. J. W. Kloesel (1992). “The Essential Peirce, Volume 1: Selected Philosophical Writings? (1867–1893)”, p.111, Indiana University Press
Alexander Hamilton, John Church Hamilton (1851). “The Works of Alexander Hamilton: Correspondence [contin.] 1795-1804; 1777; 1791. Letters of H.G. 1789. Address to public creditors. 1790. Vindication of funding system. 1791”, p.541