IV. Destiny of the human race—The hypothesis of immortality from the point of view of monism—Two possible conceptions of immortality—Eternal or untemporal existence and continuation of life in some superior forms—I. Hypothesis of eternal life—its function in antique religions, in Platonism, and in the systems of Spinoza, Kant, and Schopenhauer—Eternal life and the subsistence of the individual—Distinction made by Schopenhauer and various other philosophers between individuality and personality—Eternal life problematical and transcendent—Aristocratic tendency of the theory of eternal life—Hypothesis of conditional immortality—Criticism of the hypothesis of conditional immortality; incompatibility of this notion with that of divine goodness—II. Hypothesis of a continuation of the present life and its evolution into some superior form—What sort of immortality the theory of evolution permits us to hope for—Immortality of one’s labours and conduct—True conception of such immortality—Its relation to the laws of heredity, atavism, natural selection—Immortality of the individual—Objections drawn from science—Protestations of affection against the annihilation of the person—Resulting antinomy—III. Modern opposition between the conception of _function_ and the conception of simple substance, in which ancient philosophy endeavours to find a proof of immortality—Peripatetic theory of Wundt and modern philosophers on the nature of the soul—Immortality as a continuation of function, proved not by the simplicity, but by the complexity of consciousness—Relation between complexity and instability—Three stages of social evolution—Analogy of conscience with a society, collective character of individual consciousness—Conception of progressive immortality—Last product of evolution and natural selection: (1) No necessary relation between the compositeness and complexity of consciousness and its dissolubility: indissoluble compounds in the physical universe—(2) Relation between consciousnesses, their possible fusion in a superior consciousness—Contemporary psychology and the religious notion of the interpenetration of souls—Possible evolution of memory and identification of it with reality—Palingenesis by force of love—Problematic character of those conceptions and of every conception relative to existence, of consciousness and the relation between existence and consciousness—IV. Conception of death appropriate to those who, in the present state of evolution, do not believe in the immortality of the individual—Antique and modern stoicism—Acceptance of death: element of melancholy and of greatness in it—Expansion of self by means of philosophical thought, and scientific disinterestedness, to the point of to some extent approving one’s own annihilation, 477 INTRODUCTION. I. Sociality the basis of religion—Its definition.