An Outline of the Necessary Laws of Thought: A Treatise on Pure and Applied Logic |
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Common terms and phrases
abstract acid admit affirmative alkali animal applied Logic argument Aristotle ascertain attributes author of Junius belong bodies called Categories cause chemical affinity common conception conclusion connection contain copula Deduction defined definition distinct divided division doctrine of chances employed Enthymemes enumerated example exist explain expressed extension facts figure formal former genus gism given Greek Hindú ideas implies Indian Logic Indian philosophy inductive inductive reasoning inference instrument Iridium ject judgment Kanâda knowledge language laws of thought Leibnitz logicians marks matter means ment metals mind mode mortal nature negative Nominalist notion nouns objects observations particular perception philosophy plant Plato predicate premisses principle privative properties proposition reason relation represent rhetorical induction rules sense Sir Philip Francis smoke species subject and predicate substance syllogism things third tion tive true truth universal Vyâpti whilst whole words
Popular passages
Page 45 - I see before me the Gladiator lie : He leans upon his hand — his manly brow Consents to death, but conquers agony, And his droop'd head sinks gradually low — And through his side the last drops, ebbing slow From the red gash, fall heavy, one by one, Like the first of a thunder-shower; and now The arena swims around him — he is gone, Ere ceased the inhuman shout which hail'd the wretch who won.
Page 62 - And out of the ground the Lord God formed every beast of the field, and every fowl of the air ; and brought them unto Adam to see what he would call them : and whatsoever Adam called every living creature, that was the name thereof.
Page 45 - He reck'd not of the life he lost nor prize, But where his rude hut by the Danube lay, There were his young barbarians all at play, There was their Dacian mother— he, their sire, Butcher'd to make a Roman holiday— All this rush'd with his blood— Shall he expire And unavenged?
Page 76 - ... a lion, whom the condors were eyeing with envy from their airy height. The signal of the birds was to him what the sight of the lion alone would have been to the traveller, a full assurance of its existence...
Page 268 - There are and can exist but two ways of investigating and discovering truth. The one hurries on rapidly from the senses and particulars to the most general axioms; and from them as principles and their supposed indisputable truth derives and discovers the intermediate axioms.
Page 203 - Useful for showing the differences of things, and preventing confusion of distinct conceptions. For the 3d Fig. the dictum de exemplo — " Two terms which contain a common part, partly agree, or if one contains a part which the other does not, they partly differ.
Page 52 - By virtue of the name we have attached to each of them ; which, like the labels upon the chemist's jars or the gardener's flower-pots, enable us at once to identify and secure the property we seek. Names then are the means of fixing and recording the result of trains of thought, which without them must be repeated frequently, with all the pain of the first effort.* § 25. (iii.) Leibnitz was the first, so far as I know, to call attention to the fact that words are sometimes more than signs of thought...
Page 339 - Therefore earth differs from the others :" But the Vaiseshika stops us at the very first word, he does not admit the " Whatever," because it is not a " Whatever," but only one single case. It would be impossible to give instances, nay, to give a single instance for the Vyapti, proposed by the European Logicians, except earth over again. The third case is, where the Vyapti admits both of positive and negative instances, as in the hackneyed syllogism of the volcano. Here we can say, Wherever there...
Page 43 - ... gestures that indicate the feelings, even painting and sculpture, together with those contrivances which replace speech in situations where it cannot be employed, — the telegraph, the trumpet-call, the emblem, the hieroglyphic. * For the present, however, we may limit it to its most obvious signification ; it is a system of articulate words adopted by convention, to represent outwardly the internal process of thinking.
Page 29 - Ulrici have since founded upon them. No : the man of science possesses principles, but the artist, not the less nobly gifted on that account, is possessed and carried away by them. " The principles which Art involves, science evolves. The truths on which the success of Art depends, lurk in the artist's mind in an undeveloped state,— guiding his hand, stimulating his invention, balancing his judgment, but not appearing in the form of enunciated propositions."* And because the artist cannot always...