And meanwhile, there is a mass of evidence still waiting collection and interpretation, which may one day throw further light upon the point. Under such circumstances, therefore, it is as impolitic as it is unscientific to identify Christian apology with a position which may one day prove untenable. Attention has already been called to a similar imprudence in connection with Biogenesis, and the history of past apology is full of warnings against such conduct. Then, again, there is the converse view which is often as glibly stated as if it were already a scientific truism; the view that religion was evolved out of non-religious elements, such as the appearance of dead ancestors in dreams. This rests, to begin with, on the supposition that the opinions of uncivilized man, as we now find him, are the nearest to those of man in his primitive condition; which, considering that degradation is a recognised factor in history, and that degradation acts more powerfully in religion than in any other region, is a very considerable assumption. But even granting this, the psychological possibility of the process in question, as well as the lapse of time sufficient for its operation, are both as yet unproved. It is an hypothetical process, happening in an hypothetical period; but, logically considered, nothing more. All this should make us cautious in approaching the comparative study of religions. Still, even in its present stage, it has reached some general results. In the first place, the universality of religion is established as an empirical fact. Man, with a few insignificant exceptions which may fairly be put down to degradation, within the limits of our observation, is everywhere religious. The notion that religion was an invention of interested priestcraft has vanished, like many other eighteenth century fictions, before nineteenth century science. Even in the savage races, where priestcraft is most conspicuous, the priest has never created the religion, but always the religion the priest. Beyond this fact it is unsafe to dogmatize. There is abundant evidence of early nature-worship in very various forms, but whether this was the degraded offspring of purer conceptions, or as is more generally supposed the primitive parent from which those conceptions sprang, is still an open question. The universality of the fact is all that is certain.