Note 20 — I.

To avoid misunderstanding I may observe that in the above definitions I am considering Religion and Science under the conditions in which they actually exist. It is conceivable that under other conditions these two departments of thought might not be so sharply separated. Thus, for instance, if a Religion were to appear carrying a revelation to Science upon matters of physical causation, such a Religion (supposing the revelation were found by experiment to be true) ought to be held to exercise upon Science a strictly legitimate influence.