[259] "A Free Examination of Darwin's Treatise," p. 29, reprinted from the _Atlantic Monthly_ for July, August, and October, 1860. [260] "Origin of Species," 5th edition, p. 571. [261] "Animals and Plants under Domestication," vol. ii. p. 431. [262] The Rev. Baden Powell says, "All sciences approach perfection as they approach to a unity of first principles,--in all cases recurring to or tending towards certain high elementary conceptions which are the representatives of the unity of the great archetypal ideas according to which the whole system is arranged. Inductive conceptions, very partially and imperfectly realized and apprehended by human intellect, are the exponents in our minds of these great principles in nature." "All science is but the partial reflexion in the _reason of man_, of the great all-pervading _reason of the universe_. And thus the _unity_ of science is the reflexion of the _unity_ of nature, and of the _unity_ of that supreme reason and intelligence which pervades and rules over nature, and from whence all reason and all science is derived." (Unity of Worlds, Essay i., Sec. ii.; Unity of Sciences, pp. 79 and 81.) Also he quotes from Oersted's "Soul in Nature" (pp. 12, 16, 18, 87, 92, and 377). "If the laws of reason did not exist in nature, we should vainly attempt to force them upon her: if the laws of nature did not exist in our reason, we should not be able to comprehend them." ... "We find an agreement between our reason and works which our reason did not produce." ... "All existence is a dominion of reason." "The laws of nature are laws of reason, and altogether form an endless unity of reason; ... one and the same throughout the universe."