The Works of Aristotle, Volumen6Clarendon Press, 1913 |
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Términos y frases comunes
admit advocates of indivisible Anaxagoras angle animals Apelt's conjecture argument Aristotle become bisected body breath called Caunus centre circle colour commensurate consist of points constituents Cook Wilson corrupt diagonal divided earth Empedocles equal Euboea Euclid exist finite number follows fruit fulcrum GORGIA greater H. H. JOACHIM hair Hayduck heat Hence Heracles indivisible lines infinite length lever line consists means Melissus Meyer moisture motion moved movement nature Not-being number of divisions nutriment object Oriel College parallelogram passage plane plants produced quâ quanta read with Apelt sense side simple solid square straight line things translation trees ungenerated unit-line unlimited W. D. Ross weight whilst whole wind writer Xenophanes ἂν γὰρ γραμμὴ δὲ εἰ εἴη εἶναι ἐκ ἐλάχιστον ἐν ἔσται ἔτι καὶ κτλ μὲν μὴ οὐκ στιγμὴ τὰ τῇ τὴν τῆς τὸ τοῖς τοῦ τῷ τῶν ὧν ὥστε
Pasajes populares
Página 845 - Our wonder is excited, firstly, by phenomena which occur first in accordance with nature but of which we do not know the cause, and, secondly, by those which are produced by art despite nature for the benefit of mankind. Nature often operates contrary to human expediency, for she always follows the same course without deviation, whereas human expediency is always changing. When, therefore, we have to do something contrary to nature, the difficulty of it causes us perplexity and art has to be called...
Página 847 - ... as the weight moved is to the weight moving it, so, inversely, is the length of the arm bearing the weight to the length of the arm nearer to the power.
Página 803 - There never was an animal with the form of one kind and the mental character of another: the soul and body appropriate to the same kind always go together, and this shows that a specific body involves a specific mental character.
Página 845 - Now we use the word - quicker ' in two senses ; if an object traverses an equal distance in less time, we call it quicker, and also if it traverses a greater distance in equal time. Now the greater radius describes a greater circle in equal time ; for the outer circumference is greater than the inner. 10 The reason of this is that the radius undergoes two displacements. Now if the two displacements of a body...
Página 845 - Nature often operates contrary to human expediency ; for she always follows the same course without deviation, whereas human 15 expedienfy is always changing. When, therefore, we have to do something contrary to nature, the difficulty of it causes us perplexity and art has to be called to our aid.
Página 847 - Cp. 847 b 2. 35 divided into two unequal parts ? The fulcrum, then, takes the place of the cord, for both remain at rest and act as the centre. Now since a longer radius moves more quickly than a shorter one under pressure of an equal weight ; and since the lever requires three elements, viz. the fulcrum — corresponding to the cord of a balance and forming the centre — and two weights, that exerted by the person using the lever and the weight which is to be moved ; this being so, as the weight...
Página 808 - Too black a hue marks the coward, as witness Egyptians and Ethiopians, and so does also too white a complexion, as you may see from women. So the hue that makes for courage must be intermediate between these extremes. A tawny colour indicates a bold spirit, as in lions; but too ruddy a hue marks a rogue, as in the case of the fox. A pale mottled hue signifies cowardice, for that is the colour one turns in terror. The honey-pale are cold, and coldness means immobility, and an immobile body means slowness....
Página 845 - Because a circle moves in two contrary forms of motion 30 at the same time, and because one extremity of the diameter, A, moves forwards and the other, B, moves backwards, some people contrive so that as the result of a single movement a number of circles move simultaneously in contrary directions, like the wheels of brass and iron which they make and dedicate in the temples.
Página 845 - ... therefore, we have to do something contrary to nature, the difficulty of it causes us perplexity and art has to be called to our aid. The kind of art which helps us in such perplexities we call Mechanical Skill. The words of the poet Antiphon are 3j quite true : ' Mastered by Nature, we o'ercome by Art.
Página 797 - ... thrusting forward in like manner the adjoining air, so that the sound travels unaltered in quality as far as the disturbance of the air manages to reach.