Fichte was appointed professor of philosophy (1810) in the new University of Berlin, for which he had been invited to construct a plan and in the establishment of which he took a lively interest. During the last period of his life he devoted himself to the development of his thoughts in systematic form and wrote a number of books; most of these were published after his death, which occurred January 27, 1814. Among them we mention: General Outline of the Science of Knowledge, 1810 (trans. by Smith); The Facts of Consciousness, 1813; Theory of the State, published 1820. The Complete Works, edited by his son, J.H. Fichte, appeared 1843-46. New editions of particular works are now appearing.
The world for Fichte is at bottom a spiritual order, the revelation of a self-determining ego or reason; hence the science of the ego, or reason, the Wissenschaftslehre, is the key to all knowledge, and we can understand nature and man only when we have caught the secret of the self-active ego. Philosophy must, therefore, be Wissenschaftslehre, for in it all natural and mental sciences find their ultimate roots; they can yield genuine knowledge only when and in so far as they are based on the principles of the Science of Knowledge—mere empirical sciences having no real cognitive value. The ego-principle itself, however, without which there could be no knowledge, cannot be grasped by the ordinary discursive understanding with its spatial, temporal, and causal categories. Kant is right: if we were limited to the scientific intellect, we could never rise above the conception of a phenomenal order absolutely ruled by the causal law. But there is another source of knowledge: in an act of inner vision or intellectual intuition, which is itself an act of freedom, we become conscious of the universal moral purpose; the law of duty or the categorical imperative commands us to be free persons. We cannot refuse to accept this law without abandoning ourselves as persons, without conceiving ourselves as things, or mere products of nature; the choice of one's philosophy, therefore, depends upon what kind of man one is—upon one's values, upon one's will. The type of man who is a slave of things, who cannot raise himself out of the causal mechanism, who is not free, will never be able to conceive himself otherwise than as a cog in a wheel. Fichte accepts the ego, or spirit, as the ultimate and absolute principle, because it alone can give our life worth and meaning. Thus he grounds his entire philosophy upon a moral imperative which presents itself to the ego in an inner vision. He also tells us that we can become immediately aware of the pure activity of the ego, of our free action, in a similar act of intellectual intuition. But we cannot know this free act unless we perform it ourselves; no one can understand the idealistic philosophy who is not free; hence philosophy begins with an act of freedom—im Anfang war die Tat.
In order that we may rise to free action, opposition is needed, and this we get in the spatial-temporal world of phenomena, or nature, which the ego creates for itself in order to have resistance to overcome. Fichte conceives of nature as "the material of our duty," as the obstacle against which the ego can exercise its freedom. There could be no free action without something to act upon, and there could be no purposive action without a world in which everything happens according to law; and such a causal world we have in our phenomenal order, which is the product of the absolute spiritual principle. By the ego Fichte did not mean the subjective ego, the particular individual self with all its idiosyncrasies, but the universal ego, the reason that manifests itself in all conscious individuals as universal and necessary truth. In his earlier period he did not define his thought very carefully, but in time the absolute ego came to be conceived as the principle of all life and consciousness, as universal life, and ultimately identified with God. His philosophy is, therefore, not subjective idealism, although it was so misinterpreted, but objective idealism; nature is not the creation of the particular individual ego, but the phenomenal expression, or reflection, in the subject of the universal spiritual principle.
Upon such an idealistic world-view Fichte based the ethical teachings through which he exercised a lasting influence upon the German people and the history of human thought. The universal ego is a moral ego, an ego with an ethical purpose, that realizes itself in nature and in man; it is, therefore, the vocation of man to obey the voice of duty and to free himself from the bondage of nature, to be a person, not a thing, to coöperate in the realization of the eternal purpose which is working itself out in the history of humanity, to sacrifice himself for the ideal of freedom. Every individual has his particular place in which to labor for the social whole; how to do it, his conscience will tell him without fail. And so, too, the German people has its peculiar place in civilization, its unique contribution to make in the struggle of the human race for the development of free personality. It is Germany's mission to regain its nationality, in order that it may take the philosophical leadership in the work of civilization, and to establish a State based upon personal liberty, a veritable kingdom of justice, such as has never appeared on earth, which shall realize freedom based upon the equality of all who bear the human form.
The Fichtean philosophy holds the mirror up to its age. With the Enlightenment it glorifies reason, the free personality, nationality, humanity, civilization, and progress; in this regard it expresses the spirit of all modern philosophy. It goes beyond the Aufklärung in emphasizing the living, moving, developing nature of reality; for it, life and consciousness constitute the essence of things, and universal life reveals itself in a progressive history of mankind. Moreover, the dynamic spiritual process cannot be comprehended by conceptual thought, by the categories of a rationalistic science and philosophy, but only by itself, by the living experience of a free agent. In the categorical imperative, and not in logical reasonings, the individual becomes aware of his destiny; in the sense of duty, the love of truth, loyalty to country, respect for the rights of man, and reverence for ideals, spirit speaks to spirit and man glimpses the eternal.
Among the elements in this idealism that appealed to the Romanticists were its anti-intellectualism, its intuition, the high value it placed upon the personality, its historical viewpoint, and its faith in the uniqueness of German culture. They welcomed the Wissenschaftslehre as a valuable ally, and exaggerated those features of it which seemed to chime with their own views. The ego which Fichte conceives as universal reason becomes for them the subjective empirical self, the unique personality, in which the unconscious, spontaneous, impulsive, instinctive phase constitutes the original element, the more extravagant among them transforming the rational moral ego into a romantic ego, an ego full of mystery and caprice, and even a lawless ego. Such an ego is read into nature; for, filled with occult magic forces, nature can be understood only by the sympathetic divining insight of the poetic genius. And so, too, authority and tradition, as representing the instinctive and historical side of social life, come into their own again.
Fichte's chief interest was centred upon the ego; nature he regarded as a product of the absolute ego in the individual consciousness, intended as a necessary obstacle for the free will. Without opposition the self cannot act; without overcoming resistance it cannot become free. In order to make free action possible, to enable the ego to realize its ends, nature must be what it is, an order ruled by the iron law of causality. This cheerless conception of nature—which, however, was not Fichte's last word on the subject, since he afterward came to conceive it as the revelation of universal life, or the expression of a pantheistic God—did not attract Romanticism. It was Schelling, the erstwhile follower and admirer of Fichte, who turned his attention to the philosophy of nature and so more thoroughly satisfied the romantic yearnings of the age.
Friedrich Wilhelm Joseph Schelling was born at Leonberg, Würtemberg, January 27, 1775, the son of a learned clergyman and writer on theology. He was a precocious child and made rapid progress in his studies, entering the Theological Seminary at Tübingen at the age of fifteen. Between the ages of nineteen and twenty-two he wrote a number of able treatises in the spirit of the new idealism, and was recognized as the most talented pupil of Fichte and his best interpreter. After the completion of his course at the University (1795), he became the tutor and companion of two young noblemen with whom he remained for two years (1796-98) at the University of Leipzig, during which time he devoted himself to the study of mathematics, physics, and medicine, and published a number of philosophical articles. In 1798 he received a call to a professorship at Jena, where Fichte, Schiller, Wilhelm Schlegel, and Hegel became his colleagues, and where he entered into friendly relations with the Romantic circle of which Caroline Schlegel, who afterward became his wife, was a shining light. This was the most productive period of his life; during the next few years he developed his own system of philosophy and gave to the world his most brilliant writings. In 1803 he accepted a professorship at Würzburg, but came into conflict with the authorities; in 1806 he went to Munich as a member of the Academy of Sciences and Director of the Academy of Fine Arts; in 1820 he moved to Erlangen; and in 1827 he returned to Munich as professor of philosophy at the newly-established University and as General Curator of the Scientific Collections of the State. He was called to Berlin in 1841 to help counteract the influence of the Hegelian Philosophy, but met with little success. He died in 1854.
The earlier writings of Schelling either reproduced the thoughts of the Wissenschaftslehre or developed them in the Fichtean spirit. Among those of the latter class we note: Ideas for a Philosophy of Nature, 1797; On the World-Soul, 1798; System of Transcendental Idealism, 1800. During the second period, in which the influence of Bruno and Spinoza is prominent, he works out his own philosophy of identity; at this time he publishes Bruno, or, Concerning the Natural and Divine Principle of Things, 1802, and Method of Academic Study, 1803. In the third period the philosophy of identity becomes the basis for a still higher system in which the influence of German theosophy (Jacob Böhme) is apparent; with the exception of Philosophy and Religion, 1804, the Treatise on Human Freedom, 1809, and a few others, the works of this period did not appear until after Schelling's death. His previous philosophy is now called by him "negative philosophy;" the higher or positive philosophy has as its aim the rational construction of the history of the universe, or the history of creation, upon the basis of the religious ideas of peoples; it is a philosophy of mythology and revelation. Translations of some of Schelling's works are to be found in the Journal of Speculative Philosophy, an American periodical founded by W.T. Harris, which devoted itself to the study of post-Kantian idealism. His Complete Works, edited by his son, appeared in 14 volumes, 1856. There is a revival of interest in his philosophy, and new editions of his books are now being published.
Like most philosophers of note, Schelling reckons with the various tendencies of his times. With idealism he interprets the universe as identical in essence with what we find in our innermost selves; it is at bottom a living dynamic process. If that is so, nature cannot be a merely externalized obstacle for the ego, nor a dead static spatial mechanical system; as the expression of an active spiritual principle there must be reason and purpose in it. But reason is not identified by Schelling with self-conscious intelligence, for with the faith-philosophies and Romanticism he takes it in a wider sense; in physical and organic nature it is a slumbering reason, an unconscious, instinctive, purposive force similar to the Leibnizian monad, Schopenhauer's will, and Bergson's élan vital. In this way the dualism between mechanism and teleology is reconciled. Nature is a teleological order, an evolution from the unconscious to the conscious; in man, the highest stage and the climax of history, nature becomes self-conscious. With this organic conception both Romanticists and many natural scientists of the age were in practical agreement; it was the view that had always appealed to Goethe—and Herder before him—and it gained for Schelling a large following. In his earlier system he regarded nature as a lower stage in the evolution of reason and sought to answer the problems: How does Nature become Consciousness or Ego? the problem of the Philosophy of Nature; and, How does Consciousness or the Ego become Nature? the problem of Transcendental Idealism. In his philosophy of identity, nature and mind are conceived as two different aspects of one and the same principle, which is both mind and nature, subject and object, ego and non-ego. All things are identical in essence but differentiated in the course of evolution. It was not inconsistent with these tenets that Schelling sought, in his last period, to discover the meaning of universal history in the obscure beginnings of mythology and revelation rather than in the lucid regions of an advanced civilization.