The human race is a monotonous affair. Most people spend the greatest part of their time working in order to live, and what little freedom remains so fills them with fear that they seek out any and every means to be rid of it.

Von Goethe, Johann Wolfgang. "Wilhelm Meister's Apprenticeship." Goethe: The Collected Works, edited and translated by Eric A. Blackall. Vol. 9, Princeton University Press, 1995, bk. 7, ch. 5.

Hume, David. "A Treatise of Human Nature." The Clarendon Edition of the Works of David Hume, edited by David Fate Norton and Mary J. Norton. Vol. 1, Oxford University Press, 2007, bk. 3, pt. 2, sect. 2.

Simmel, Georg. "The Metropolis and Mental Life." Classic Essays on the Culture of Cities. Appleton-Century-Crofts, 1969.