Lest the reader begin to suspect that we have left the matter of the value of evolutionary ideas comprehending morality, let us turn abruptly to that field. I shall endeavor to point out that there is more than analogy, there is an exact identity, between what the experimental method does for our physical knowledge, and what the historical method in a narrower sense may do for the spiritual region: the region of conscious values. My aim is to show that the historical method reveals to us a process of becoming, and thereby brings under intellectual and practical control facts which utterly resist general speculation or mere introspective observation.
History, as viewed from the evolutionary standpoint, is not a mere collection of incidents or external changes, which something fixed (whether spiritual or physical) has passed through, but is a process that reveals to us the conditions under which moral practices and ideas have originated. This enables us to place, to relate them. In seeing where they came from, in what situations they arose, we see their significance. Moreover, by tracing the historical sequence we are enabled to substitute a view of the whole in its concrete reality for a sketchy view of isolated fragments. History is for the individual and for the unending procession of the universe, what experiment is to the detached field of physics. We cannot apply artificial isolation and artificial recombination to those facts with which ethical science is concerned. We cannot take a present case of parental care, or of a child's untruthfulness, and cut it into sections, or tear it into physical pieces, or subject it to chemical analysis. Only through history, through a consideration of how it came to be what it is, can we unravel it and trace the interweaving of its constituent parts. History offers to us the only available substitute for the isolation and for the cumulative recombination of experiment. The early periods present us in their relative crudeness and simplicity with a substitute for the artificial operation of an experiment: following the phenomenon into the more complicated and refined form which it assumes later, is a substitute for the synthesis of the experiment.
The value of the earlier stages of any historic evolution is,
