This noble and more rational theory of eternal and causative Ideas resembles anthropomorphic polytheism in concentrating into one supreme Idea the intellectual Zeus, the Being of beings, according to another mythical and scientific representation by Aristotle, and it was afterwards combined with the Semitic idea of the Absolute.  This was fused with the Logos, the Platonic demiurgos of Messianic ideas, and afterwards produced the universal philosophy and religion of Catholicism, which dominated and still dominates over thought with vigorous tenacity, and extends into all the civilized world inhabited by European races.  We do not only trace the same thought, modified, classified, and perfected in the Fourth Gospel, in the Councils, the Fathers, and the schoolmen, but also in independent philosophies.  In our own time it has assumed new forms, derived from the rapid progress made in cosmic and experimental sciences, even in those which are apparently the most rationalizing.  It is manifest in Hegel, Fichte, and Schelling, nor is it difficult to trace it in the latest and artificial theories of the schools of Schopenhauer and Hartmann.  In all these cases the entification of logical conceptions is evident; in all there is an arbitrary personification of a conception or of a fundamental Idea.

In order fully to understand the evolution of thought in myth and science, it is necessary to consider the other schools which arose in Greece, prior to, and contemporaneously with, Plato, as we shall thus obtain a more comprehensive idea of the course of such a development.  In addition to the natural and partly ideal schools, the Ionic, the Eleatic, the Pythagorean and the Platonic, there arose those of Leucippus, Democritus, and Epicurus, which might be called mechanical, and that of Aristotle, which takes a middle course between the idea and the fact, between the dynamic and the mechanical explanation of the universe.

In an intellectual people like the Greeks there arose, in addition to the speculative theories already mentioned, other opinions which were derived from minds singularly free from mythical ideas; the world was considered as a concourse of independent atoms; its genesis thus became more conformable with abstract mathematical calculation, effected by this combination of simple bodies and the evolution of elements.  This was what Leucippus, Democritus, and Epicurus undertook to teach, passing beyond the natural and ideal myths, in order to take their stand on the movement of isolated parts as the maker of the universe.  Hence followed the theory of atoms, and the mechanical construction of the world, of bodies and souls, their continual composition and decomposition.  Since, however, these were mere speculations, not supported by experimental methods and adequate instruments, mythical forms were confounded with the mechanical explanation of the world, such as the altogether anthropomorphic conception of gods who were dissolved and formed again; the sensible effluvium from images, an effluvium which revealed the ancient belief in the normal and abnormal personification of imaginary forms, and of ideas.  Yet the character of this teaching was progressive and rational in comparison with the mythical and ideal theory of Plato, and with the schools and religions which emanated from him, even up to our time, and thought was strongly stimulated in its opposition to the continuance of myth.