[46] In his _Natuerlische Schoepfungsgeschichte_, Haeckel is still more exclusive. When he comes to answer the objections to the evolution, or, as he commonly calls it, the descendence theory, he dismisses the objections derived from religion, as unworthy of notice, with the remark that all Glaube ist Aberglaube; all faith is superstition. The objections from _a priori_, or intuitive truths, are disposed of in an equally summary manner, by denying that there are any such truths, and asserting that all our knowledge is from the senses. The objection that so many distinguished naturalists reject the theory, he considers more at length. First, many have grown old in another way of thinking and cannot be expected to change. Second, many are collectors of facts, without studying their relations, or are destitute of the genius for generalization. No amount of material makes a building. Others, again, are specialists. It is not enough that a man should be versed in one department; he must be at home in all: in Botany, Zooelogy, Comparative Anatomy, Biology, Geology, and Palaeontology. He must be able to survey the whole field. Fourthly, and mainly, naturalists are generally lamentably deficient in philosophical culture and in a philosophical spirit. "The immovable edifice of the true, monistic science, or what is the same thing, natural science, can only arise through the most intimate interaction and mutual interpenetration of philosophy and observation (Philosophie und Empirie)." pp. 638-641. It is only a select few, therefore, of learned and philosophical monistic materialists, who are entitled to be heard on questions of the highest moment to every individual man, and to human society. [47] This short but significant sentence is omitted in the excellent translation of Strauss's book, by Mathilde Blind, republished in New York, by Henry Holt & Company, 1873. [48] _The Fallacies of Darwinism_, by C. R. Bree, M. D., p. 308. [49] _The Fallacies of Darwinism_, p. 305. [50] _Bibliotheca Sacra_, 1857, p. 861. [51] _The Story of Earth and Man_, p. 358. [52] Dr. Bree, p. 275. We presume geologists differ in the terms which they use to designate strata. Agassiz calls the oldest containing fossil, the sub-Cambrian. Principal Dawson calls the oldest the Laurentian, and places the first vertebrates in the Silurian. This is of no moment as to the argument. The important fact is that each species is distinct as soon as it appears; and that many have remained to the present time. [53] _Atlantic Monthly_, January, 1874.