"Religious ideas of one kind or another," says Mr. Spencer, "are almost universal.... We are obliged to admit that, if not supernaturally derived, as the majority contend, they must be derived out of human experiences, slowly accumulated and organized.... Considering all faculties," under the evolutionary hypothesis, "to result from accumulated modifications caused by the intercourse of the organism with its environment, we are obliged to admit that there exist in the environment certain phenomena or conditions which have determined the growth of the feeling in question, and so are obliged to admit that it is as normal as any other faculty.... We are also forced to infer that this feeling is in some way conducive to human welfare.... Positive knowledge does not and never can fill the whole region of possible thought. At the utmost reach of discovery there arises, and must ever arise, the question--what lies beyond?... Throughout all future time, as now, the human mind may occupy itself, not only with ascertained phenomena and their relations, but also with that unascertained something which phenomena and their relations imply. Hence if knowledge cannot monopolize consciousness--if it must always continue possible for the mind to dwell upon that which transcends knowledge; then there can never cease to be a place for something of the nature of Religion; since Religion under all its forms is distinguished from everything else in this, that its subject matter is that which passes the sphere of experience." Religion is "a constituent of the great whole; and being such must be treated as a subject of Science with no more prejudice than any other reality."