Book Ii, Chapter Ii, and in James's _principles of Psychology_, Vol.

II, pp. 549-559.

Nietsche: Op. cit., p. 107.

Huxley: Evolution and Ethics and Other Essays, pp. 81-82. The first two essays contained in this volume, the Prolegomena, and the Romanes Lecture, contain a very interesting study of the relation of morality to nature.

Huxley: Op. cit., p. 13.

G. K. Chesterton: Napoleon of Notting Hill, p. 291. The whole book is a brilliant satire, intended to show that all of the heroic sentiments and virtues depend on war and local pride.

Nietsche: Op. cit., pp. 59, 163, 176, 223, 235, 237, 122.

Chesterton: Heretics, and Orthodoxy.

Plato: Protagoras, p. 322 (marginal pagination), and passim; translated by Jowett.

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