[Footnote 169: _Expression of the Emotions_, pp. 373, 374.] [Footnote 170: _Ibid._ p. 368.] [Footnote 171: _Ibid._ p. 369.] [Footnote 172: _Expression of the Emotions_, pp. 65 ff.] [Footnote 173: Cf. William James, _Principles of Psychology_, Vol. II. Chap. XXV, New York, 1890.] [Footnote 174: _Darwinism_, pp. 282, 283, London, 1889.] [Footnote 175: _Ibid._ p. 283.] [Footnote 176: _Darwinism_, pp. 283, 284.] [Footnote 177: _Descent of Man_ (2nd edit.), Vol. II. pp. 136, 137; (Popular edit.), pp. 642, 643.] [Footnote 178: _The Play of Animals_, p. 244, London, 1898.] [Footnote 179: _Ibid._ p. 283.] [Footnote 180: _Descent of Man_, Vol. II. p. 60; (Popular edit.), p. 566.] [Footnote 181: _The Play of Animals_, p. 76.] [Footnote 182: _Ibid._ p. 75.] [Footnote 183: _The Play of Animals_ p. 24.] [Footnote 184: _Descent of Man_ (1st edit.), Chaps. II, III, V; (2nd edit.), Chaps. III, IV, V.] [Footnote 185: _Descent of Man_, Vol. I. pp. 70, 71; (Popular edit.), pp. 70, 71.] [Footnote 186: _Ibid._ p. 81.] [Footnote 187: _Ibid._ (Popular edit.), p. 82.] [Footnote 188: _Comptes Rendus des Sciences_, June 1, 1868.] [Footnote 189: _Nature_, Vol. LXI. pp. 624, 625 (1900).] [Footnote 190: _Descent of Man_, Vol. I. p. 100.] [Footnote 191: _Principles of Psychology_, Vol. II. p. 289.] [Footnote 192: _Descent of Man_, Vol. I. p. 149.] [Footnote 193: _Descent of Man_, p. 185.] [Footnote 194: _Ibid._ p. 150 (footnote).] VII THE INFLUENCE OF THE CONCEPTION OF EVOLUTION ON MODERN PHILOSOPHY BY H. HÖFFDING _Professor of Philosophy in the University of Copenhagen_ I It is difficult to draw a sharp line between philosophy and natural science. The naturalist who introduces a new principle, or demonstrates a fact which throws a new light on existence, not only renders an important service to philosophy but is himself a philosopher in the broader sense of the word. The aim of philosophy in the stricter sense is to attain points of view from which the fundamental phenomena and the principles of the special sciences can be seen in their relative importance and connection. But philosophy in this stricter sense has always been influenced by philosophy in the broader sense. Greek philosophy came under the influence of logic and mathematics, modern philosophy under the influence of natural science. The name of Charles Darwin stands with those of Galileo, Newton, and Robert Mayer--names which denote new problems and great alterations in our conception of the universe.