If Lotze’s philosophy harmoniously combines Herbartian and Fichteo-Hegelian elements, Eduard von Hartmann (born 1842; until 1864 a soldier, now a man of letters in Berlin) aims at a synthesis of Schopenhauer and Hegel; with the pessimism of the former he unites the evolutionism of the latter, and while the one conceives the nature of the world-ground as irrational will, and the other as the logical Idea, he follows the example of Schelling in his later days by making will and representation equally legitimate attributes of his absolute, the Unconscious.  His principal theoretical work, The Philosophy of the Unconscious, 1869 (10th ed., 1891; English translation by Coupland, 1884), was followed in 1879 by his chief ethical one, The Moral Consciousness (2d ed., 1886, in the Selected Works); the two works on the philosophy of religion, The Religious Consciousness of Humanity in the Stages of its Development, 1881, and The Religion of Spirit, 1882, together form the third chief work (The Self-Disintegration of Christianity and the Religion of the Future, 1874, and The Crisis of Christianity in Modern Theology, 1880, are to be regarded as forerunners of this); the fourth is the Aesthetics (part i. German Aesthetics since Kant, 1886; part ii. Philosophy of the Beautiful, 1887).  The Collected Studies and Essays, 1876, were preceded by two treatises on the philosophy of nature, Truth and Error in Darwinism, 1875, and The Unconscious from the Standpoint of Physiology and the Theory of Descent, published anonymously in 1872, in the latter of which, disguised as a Darwinian, he criticises his own philosophy.  Of his more recent publications we may mention the Philosophical Questions of the Day, 1885; Modern Problems, 1886; and the controversial treatise Lotzes Philosophy, 1888.[1]

[Footnote 1:  On Hartmann cf.  Volkelt in Nord und Sued, July, 1881; the same, Das Unbewusste und der Pessimismus, 1873; Vaihinger, Hartmann, Duehring und Lange, 1876; R. Koeber, Das philosophische System Ed. v, Hartmann, 1884; O. Pfleiderer, critique of the Phaenomenologie des sittlichen Bewusstseins (Im neuen Reich), 1879; L. von Golther, Der moderne Pessimismus, 1878; J. Huber, Der Pessimismus, 1876; Weygoldt, Kritik des philosophischen Pessimismus der neuesten Zeit, 1875; M. Venetianer, Der Allgeist, 1874; A Taubert (Hartmann’s first wife), Der Pessimismus und seine Gegner, 1873; O. Pluemacher, Der Kampf ums Unbewusste (with a chronological table of Hartmann literature appended), 1881; the same, Der Pessimismus in Vergangenheit und Gegenwart, 1884; Krohn, Streifzuege (see above); Seydel (see above).  During the year 1882 four publications appeared under the title Der Pessimismus und die Sittenlehre, by Bacmeister, Christ, Rehmke, and H. Sommer (2d ed., 1883). [English translation of Truth and Error in Darwinism in the Journal of Speculative Philosophy, vols. xi.-xiii., and of The Religion of the Future, by Dare, 1886; cf. also Sully’s Pessimism, chap. v.—­TR.]]