Friedrich Nietzsche, Maudemarie Clark, Brian Leiter (1997). “Nietzsche: Daybreak: Thoughts on the Prejudices of Morality”, p.171, Cambridge University Press
John Jacob Abel, Otto Folin, Theobald Smith (1915). “Experimental and chemical studies of the blood: with an appeal for more extended chemical training for the biological and medical investigator”
Pierre-Simon Laplace (2012). “Pierre-Simon Laplace Philosophical Essay on Probabilities: Translated from the fifth French edition of 1825 With Notes by the Translator”, p.3, Springer Science & Business Media