nt also is continuous, then, in the sense in which time is; for time is either the same thing as movement or an attribute of movement. And there is no continuous movement except movement in place,Chaussures New Balance 993, and of this only that which is circular is continuous.
But if there is something which is capable of moving things or acting on them,CG Dame Hybridge Jakke Norge Salg, but is not actually doing so,Chaussures Femme Sneakerboot, there will not necessarily be movement; for that which has a potency need not exercise it. Nothing,Chaussures New Balance 890, then,Ralph Lauren, is gained even if we suppose eternal substances, as the believers in the Forms do, unless there is to be in them some principle which can cause change; nay, even this is not enough, nor is another substance besides the Forms enough; for if it is not to act, there will be no movement. Further even if it acts,Dame Moncler Pop Star Norge Salg, this will not be enough, if its essence is potency; for there will not be eternal movement,Nike Kobe 9 Elite High-Top Męskie, since that which is potentially may possibly not be. There must,Chaussures New Balance CT891, then, be such a principle, whose very essence is actuality. Further,Suisse Pas Cher, then, these substances must be without matter; for they must be eternal,Chaussures Gazelle Homme, if anything is eternal. Therefore they must be actuality.
Yet there is a difficulty; for it is thought that everything that acts is able to act, but that not everything that is able to act acts, so that the potency is prior. But if this is so, nothing that is need be; for it is possible for all things to be capable of existing but not yet to exist.
Yet if we follow the theologians who generate the world from night, or the natural philosophers who say that ‘all things were together’, the same impossible result ensues. For how will there be movement, if there is no actually existing cause? Wood will surely not move itself-the carpenter’s art must act on it; nor will the menstrual blood nor the earth set themselves in motion, but the seeds must act on the earth and the semen on the menstrual blood.
This is why some suppose eternal actuality-e.g. Leucippus and Plato; for they say there is always movement. But why and what this movement is they do say, nor, if the world moves in this way or that, do they tell us the cause of its doing so. Now nothing is moved at random, but there must always be something present to move it; e.g. as a matter of fact a thing moves in one way by nature, and in another by force or through the influence of reason or something else. (Further, what sort of movement is primary? This makes a vast difference.) But again for Plato, at least,Chaussures Nike Air Force 1 Homme, it is not permissible to name here that which he sometimes supposes to be the source of movement-that which moves itself; for the soul is later, and coeval with the heavens, according to his account. To suppose potency prior to actuality, then, is in a sense right, and in a sense not; and we have specified these senses. That actuality is prior is testified by Anaxagoras (for his ‘reason’ is actuality) and by Empedocles in his doctrine of love and strife, and by those who say that there is always movement,Maillot Cuadrado Pas Cher, e.g. Leucippus. Therefore chaos or night did not exist for an infinite time, but
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