Sketches of the History of Man: In Four Volumes, Volumen3
United Company of Booksellers, 1775
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Términos y frases comunes
affirmative againſt America ancient appear argument Ariftotle army attempt becauſe become better body called carried caufe charity concerning conclufion confidered definition demonftration divifion effect equal evidence example fact fame fays fcience fenfe ferve fhall fhould figure firft firſt five foldiers fome force four fpecies fubject fuch fyllogifm give given hand human idleness induſtry inhabitants invention kind King knowledge labour lefs logic London manner matter means mentioned military mind modes moft moſt muft muſt nature neceffary never obferved object officers opinion particular perfect perfon philofopher poor predicate prefent principles probably produce proper propofition prove reafoning reduced refpect relation require rules taken term thefe theſe thing third thofe thoſe thought tion true truth univerfal uſe whole writers
Página 139 - Who but must laugh if such a man there be ? Who would not weep if Atticus were he?
Página 140 - And this principally raises my esteem of these fables, which I receive, not as the product of the age, or invention of the poets, but as sacred relics, gentle whispers, and the breath of better times, that from the traditions of more ancient nations came, at length, into the flutes and trumpets of the Greeks.
Página 192 - Burgerfdick, after enumerating five claffes of modal fyllogifms, obferves, that they require many rules and cautions, which Ariftotle hath handled diligently ; but that as the ufe of them is not great and their rules difficult, he thinks it not worth while to enter into the difcuflion of them ; recommending to thofe who would underftand them, the moft learned paraphrafe of Joannes Monlorius upon the firft book of the Firft Analytics.
Página 195 - The form lies in the neceffary connection between the premifes and the conclufion ; and where fuch a connection is wanting, they are faid to be informal, or vicious in point of form. But where there is no fault in the form, there may be in the matter ; that is, in the propofitions of which they are compofed, which may be true or falfe, probable or improbable.
Página 60 - But of ell, the moft deplorable effect of a great city, is the preventing of population, by fhortening the lives of its inhabitants. Does a capital fwell in proportion to the numbers that are drained from the country? Far from it. The air of a populous city is infected by multitudes crouded together; and people there feldom make out the ufual time of life.
Página 207 - ... definitions, divifion, or method. To aid our rational powers, in avoiding thefe faults and in attaining the oppofite excellencies, is the end of logic ; and whatever there is in it that has no tendency to promote this end, ought to be thrown out. The rules of logic being of a very...
Página 211 - ... that while he was certain that he doubted, and reafoned, he was uncertain whether two and three made five, and whether he was dreaming or awake. It is more ftrange, that fo acute a reafoner fhould not perceive, that his whole train of reafoning to prove that his faculties were not fallacious, was mere...
Página 188 - By obfervation, and experiments properly conducted, the ftock of human knowledge may be enlarged without end ; but the power of reafoning alone, applied with vigour through a long life, would only carry a man round, like a horfe in a mill, who labours hard, but makes no progrefs. There is indeed an exception to this obfervation in the mathematical fciences.
Página 201 - Its profefled end is, to teach men to think, to judge, and to reafon, with precifion and accuracy. No man will fay that this is a matter of no importance ; the only thing therefore that admits of doubt, is, whether it can be taught. To refolve this doubt, it may be obferved, that our •rational faculty is the gift of God, given to men in very different meafure.
Página 175 - To know all the poflible modes of fyllogifm, we muft find how many different combinations may be made of thre"e out of the four vowels ; and from the art of combination the number is found to be fixtyfour.