Let free-religionists honor Aristotle, Archimedes, Kepler, Newton, and other great masters in natural science; they are worthy, and we also pay them honor. Let them be grateful to those “cultivators of science” for all the hidden truths which, by their genius and toil, they have brought to light, and in this we also sympathize. Let them join with this class the men of our own day distinguished in this line of studies: the Herschels, the Faradays, the Agassiz, the Quatrefages, the Darwins, the Secchis, the Huxleys, the Tyndalls, the Drapers, etc.; they are all worthy of honor and gratitude for every new truth which they have discovered and made known to the world. Not to love all truth unreservedly is to renounce the light of reason and to repudiate God; for he was God who said, “I am the truth.” But this grateful acknowledgment for the labors of cultivators of the sciences by no manner of means implies the acceptance of every hypothesis or theory, put forth by some of them, which for the most part are based upon insufficient data or spun out of misconceptions of religion with secret hostility to Christianity. For there are men who pass for scientists who seem to be actuated more by a spirit of opposition to religion than a sincere desire for the discovery of the secrets of nature. Hence genuine science has to suffer no less than true religion from bigots and hypocrites, who erect their untenable opinions into final decisions of scientific investigation, and cloak themselves with the honorable livery of science to put forth the ignoble doctrines of materialism. Speculations, however brilliant, ought not to pass for science, and one must be on his guard in our days, lest he allow the authority of great names to impose upon his credulity the romance of science for real science. But could not the author of this essay honor the really great men of science and be content, without dishonoring another class of men who devoted their gifts and gave their toil as enthusiastically at least, and with an equal self-sacrificing spirit, to the contemplation and discovery of another, and even, in degree, a higher, class of truths? Could he not pay Paul without robbing Peter?