"Some thoughts on the real world by one who glimpsed it and fled". Bill Watterson's commencement speech at the Kenyon College in Gambier, Ohio, www.graduationwisdom.com. May 20, 1990.
Friedrich Nietzsche, Maudemarie Clark, Brian Leiter (1997). “Nietzsche: Daybreak: Thoughts on the Prejudices of Morality”, p.18, Cambridge University Press