 | George Thomas Bettany - 1887 - Страниц: 232
...application and amplification of Malthus's principle of population. " Nothing is easier," he says, " than to admit in words the truth of the universal...this conclusion in mind. Yet unless it be thoroughly engrained in the mind, I am convinced that the whole economy of nature, with every fact on distribution,... | |
 | United States Public Health Service - 1888 - Страниц: 432
...position of these authors is well described in a passage of Mr. Darwin, referring to another subject. He says : "Nothing is easier than to admit in words the...than constantly to bear this conclusion in mind." M. Berenger-Feraud, after having pushed the matter almost to a satisfactory conclusion, to the effect... | |
 | Elizabeth Stuart Phelps - 1889 - Страниц: 260
...of that most happy phrase, the struggle for existence. " Nothing is easier," says Darwin himself, " than to admit in words the truth of the universal...this conclusion in mind. Yet, unless it be thoroughly engraved in the mind, the whole economy of nature . . . will be dimly seen, or quite misunderstood."... | |
 | Charles Darwin - 1889 - Страниц: 446
...horticultural knowledge. Nothing is easier than to admit in words the truth of the universal stru"fle for life, or more difficult — at least I have found...this conclusion in mind. Yet unless it be thoroughly engrained in the mind, the whole economy of nature, with every fact on distribution, rarity, abundance,... | |
 | James Platt - 1890 - Страниц: 220
...Existence," or, as Mr. Herbert Spencer has it, the " Survival of the Fittest." Mr. Darwin writes : " Nothing is easier than to admit in words the truth...this conclusion in mind. Yet, unless it be thoroughly engrained in the mind, the whole economy of nature, with every fact on distribution, rarity, abundance,... | |
 | Charles Darwin - 1896 - Страниц: 408
...ability than W. Herbert, Dean of Manchester, evidently the result of his great horticultural knowledge. Nothing is easier than to admit in words the truth...this conclusion in mind. Yet unless it be thoroughly engrained in the mind, the whole economy of nature, with every fact on distribution, rarity, abundance,... | |
 | Charles Darwin - 1896 - Страниц: 406
...ability than W. Herbert, Dean of Manchester, evidently the result of his great horticultural knowledge. Nothing is easier than to admit in words the truth...this conclusion in mind. Yet unless it be thoroughly engrained in the mind, the whole economy of nature, with every fact on distribution, rarity, abundance,... | |
 | Charles Dudley Warner - 1897 - Страниц: 494
...ability than W. Herbert, Dean of Manchester, evidently the result of his great horticultural knowledge. Nothing is easier than to admit in words the truth...Yet unless it be thoroughly ingrained in the mind, the whole economy of nature, with every fact on distribution, rarity, abundance, extinction, and variation,... | |
 | Charles Darwin - 1902 - Страниц: 770
...ability than W. Herbert, Dean of Manchester, evidently the result of his great horticultural knowledge. Nothing is easier than to admit in words the truth...Yet unless it be thoroughly ingrained in the mind, the whole economy of nature, with every fact on distribution, rarity, abundance, extinction, and variation,... | |
 | William Thompson Sedgwick - 1902 - Страниц: 418
...PARASITISM. HEALTH AND DISEASE IN TERMS OF GENERAL BIOLOGY. VITAL RESISTANCE, SUSCEPTIBILITY AND IMMUNITY " Nothing is easier than to admit in words the truth...than constantly to bear this conclusion in mind." " Let it also be borne in mind how infinitely complex and closefitting are the mutual relations of... | |
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Nothing is easier than to admit in words the truth of the universal struggle for life, or more difficult — at least I have found it so — than constantly to bear this conclusion in mind. 
