 | Thomas Robert Malthus - 1821 - 482 páginas
...mathematics, chemistry, and every branch of natural philosophy, how many are the in.quiries necessary to their improvement and completion, which, taken separately,...and improving knowledge would have been lost, if a raThere is another class of persons who set a very high value upon the received general rules of political... | |
 | John Frederick William Herschel - 1831 - 310 páginas
...principles, even where the immediate practical utility of it was not visible. In mathematics, chemistry, and every branch of natural philosophy, how many are the...be a sufficient motive for the search after truth !" — Malthus's Principles of Political Economy. p. 16desire, to lose sight of the richness and variety... | |
 | 1831 - 336 páginas
...principles, even where the immediate practical utility of it was not visible. In mathematics, chemistry, and every branch of natural philosophy, how many are the...be a sufficient motive for the search after truth !" — Malthus's Principles of Political Economy, p. 16. neatness, in the whole science of optics.... | |
 | 1831 - 336 páginas
...principles, even where the immediate practical utility of it was not visible. In mathematics, chemistry, and every branch of natural philosophy, how many are the...lost, if a rational curiosity, and a mere love of intormation, had not generally been allowed to be a sufficient motive for >e search after truth !"—Malthus's... | |
 | Thomas Robert Malthus - 1836 - 520 páginas
...mathematics, chemistry, and every branch of natural philosophy, how many are the inquiries necessary to their improvement and completion, which, taken separately,...be a sufficient motive for the search after truth ! I should not, therefore, consider it as by any means conclusive against further inquiries in political... | |
 | John Frederick William Herschel - 1840 - 398 páginas
...(10.) We must never forget that it is principles, not phenomena, — laws, not insulated independent necessary for their improvement and completion, which,...purpose ! how many useful inventions, and how much taluable and improving knowledge, would have been lost, if a rational curiosity, and a mere love of... | |
 | Thomas Robert Malthus - 1989 - 682 páginas
...mathematics, chemistry, and every branch of natural philosophy, how many are the inquiries necessary to their improvement and completion, which, taken separately,...be a sufficient motive for the search after truth ! I should not, therefore, consider it as by any means conclusive against further inquiries in political... | |
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In mathematics, chemistry, and every branch of natural philosophy, how many are the inquiries necessary for their improvement and completion, which, taken separately, do not appear to lead to any specifically advantageous purpose ! Ho'w many useful inventions,... 