In the infancy of the human race, geographical and astronomical ideas are the same all over the world, for they are the interpretation of things according to outward appearances, the accepting of phenomena as they are presented, without any of the corrections that reason may offer. This universality and homogeneity is nothing more than a manifestation of the uniform mode of action of human organization. [Sidenote: From homogeneous ideas the comparative sciences emerge.] But such homogeneous conclusions, such similar pictures, are strictly peculiar to the infancy of humanity. The reasoning faculty at length inevitably makes itself felt, and diversities of interpretation ensue. Comparative geography, comparative astronomy, comparative theology thus arise, homogeneous at first, but soon exhibiting variations. [Sidenote: Introduction of personified forms.] To that tendency for personification which marks the early life of man are due many of the mythologic conceptions. It was thus that the Hours, the Dawn, and Night with her black mantle bespangled with stars, received their forms. Many of the most beautiful legends were thus of a personified astronomical origin; many were derived from terrestrial or familiar phenomena. The clouds were thus made to be animated things; a moving spirit was given to the storm, the dew, the wind. The sun setting in the glowing clouds of the west became Hercules in the fiery pile; the morning dawn extinguished by the rising sun was embodied in the story of Orpheus and Eurydice. These legends still survive in India. [Sidenote: The gradual and affiliated advance of Greek theological ideas.] [Sidenote: The composite nature of the resulting mythology.]