be fully or exactly represented in the mental state of any living tribe of men.
There have been indeed few more important movements in the course of the history of mankind, than this change of opinion as to the nature and relations of what is in the mind and what is out of it. To say nothing of its vast effects upon Ethics and Religion, the whole course of Science, and of Art, of which Science is a principal element, has been deeply influenced by this mental change. Man's views of the difference between imagination and reality, of the nature of cause and effect, of the connexion between himself and the external world, and of the parts of the external world among themselves, have been entirely altered by it. To the times before this movement had gone too far, belong the developments of Mythology, so puzzling to later ages which had risen to a higher mental state, and had then thrown down the ladder they had climbed by. The modern deciphering of ancient myths has been perhaps more valuable than any direct examination of savage races, in giving us the means of realizing that early state of mind in which there is scarcely any distinct barrier between fact and fancy,—to which whatever is similar is the same. If the clouds are driven across the sky like cows from their pasture, they are not merely compared to cows, but are thought and talked of as though they really were cows; if the sun travels along its course like a glittering chariot, forthwith the wheels and the driver and the horses are there; while by treating a name as though it necessarily represented a person, it becomes possible to evolve out of the contemplation of nature those wonderful stories in which even the earth, the sea, and the sky, combine with their natural attributes a kind of half-human personality. The opinion that dreams and phantasms have an objective existence out of the mind that perceives them, and that when two ideas are associated in a man's mind the objects to which those ideas belong must have a corresponding physical connexion, are views over which the long course of observation and study of nature has brought a vast change. These things belong to that early condition of the human mind, from which, to say nothing of the special views of metaphysicians and leaders in science, the
