Joseph Butler: Sermon VII, edited by Gladstone, p. 114. Cf. also Sermon X, on Self-Deceit.
Nietsche: Beyond Good and Evil, translated by Helen Zimmern, p. 174.
Edmund Burke: A Vindication of Natural Society, Preface, pp. 4, 5. (Boston, 1806.)
The classic discussion of the whole matter is to be found in Aristotle's Nicomachean Ethics, Book I, Chapters I-VI, translated by J. E. C. Welldon. Cf. also Fr. Paulsen: System of Ethics, Book II, Chapters I, II, translated by Frank Thilly; G. H. Palmer: The Nature of Goodness, Chapters I, II; and W. James: The Moral Philosopher and the Moral Life, in his Will to Believe.
The issue is presented clearly and briefly in Paulsen: Op. cit.,
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