Logic: Or, The Art of Reasoning Simplified. With Exercises on a Variety of Interesting Topics, to Guide and Develope the Reasoning Powers of the Youthful Inquirer After Truth

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R. Davis, 1837 - 328 sider

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Side 124 - What though, in solemn silence, all Move round the dark terrestrial ball; What though no real voice nor sound Amid their radiant orbs be found; In reason's ear they all rejoice, And utter forth a glorious voice, For ever singing as they shine, The hand that made us is divine.
Side 123 - ... the three angles of a triangle are together equal to two right angles, although it is not known to all.
Side 249 - My son, if thou wilt receive my words, and hide my commandments with thee, so that thou incline thine ear unto wisdom, and apply thine heart to understanding; yea, if thou criest after knowledge, and liftest up thy voice for understanding ; if thou seekest her as silver, and searchest for her as for hid treasures ; then shalt thou understand the fear of the Lord, and find the knowledge of God.
Side 236 - If this man were wise, he would not speak irreverently of Scripture in jest ; and if he were good, he would not do so in earnest ; but he does it either in jest or earnest; therefore he is either not wise, or not good*.
Side 297 - ... and attention to the one, as he does to the other of these sciences. The relation of other modes may certainly be perceived, as well as those of number and extension : and I cannot see why they should not also be capable of demonstration, if due methods were thought on to examine or pursue their agreement or disagreement. Where there is no property, there is no injustice...
Side 8 - But that common sense is only our second liest guide, — that the rules of art, if judiciously framed, are always desirable when they can be had, is an assertion, for the truth of which I may appeal to the testimony of mankind in general, which is so much the more valuable, inasmuch as it may be accounted the testimony of adversaries. For the generality have a strong predilection in...
Side 124 - Day unto day uttereth speech, and night unto night sheweth knowledge. There is no speech nor language, where their voice is not heard. Their line is gone out through all the earth, and their words to the end of the world.
Side 31 - ... whatever is predicated (ie affirmed or denied) universally, of any class of things, may be predicated, in like manner, (viz. affirmed or denied) of any thing comprehended in that class.
Side 271 - In the second figure the middle term is the predicate of both premises : in the third, the subject of both : in the fourth, the predicate of the major premiss, and the subject of the minor.
Side 128 - It deserves likewise to be attended to on this subject, that in a number of concurrent testimonies (in cases wherein there could have been no previous concert) there is a probability distinct from that which may be termed the sum of the probabilities resulting from the testimonies of the witnesses, a probability which would remain even though the witnesses were of such a character as to merit no faith at all.

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