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TELESIO, BERNARDINO (1509-1588)

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Originally appearing in Volume V26, Page 573 of the 1911 Encyclopedia Britannica.
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TELESIO, BERNARDINO (1509-1588) , See also:Italian philosopher and natural scientist, was See also:born of See also:noble parentage at See also:Cosenza near See also:Naples in 1509. He was educated at See also:Milan by his See also:uncle, See also:Antonio, himself a See also:scholar and a poet of See also:eminence, and after-wards at See also:Rome and See also:Padua. His studies included all the wide range of subjects, See also:classics, See also:science and See also:philosophy, which constituted the curriculum of the See also:Renaissance savants. Thus equipped, he began his attack upon the See also:medieval Aristotelianism which then flourished in Padua and See also:Bologna. Resigning to his See also:brother the archbishopric of Cosenza, offered to him by See also:Pope See also:Pius IV., he began to lecture at Naples and finally founded the See also:academy of Cosenza. In 1563, or perhaps two years later, appeared his See also:great See also:work De Rerum Natura, which was followed by a large number of scientific and philosophical See also:works of subsidiary importance. The heterodox views which he maintained aroused the anger of the See also:Church on behalf of its cherished Aristotelianism, and a See also:short See also:time after his See also:death his books were placed on the See also:Index. Telesio was the See also:head of the great See also:South Italian See also:movement which protested against the accepted authority of abstract See also:reason, and sowed the seeds from which sprang the scientific methods of See also:Campanella and See also:Bruno, of See also:Bacon and See also:Descartes, with their widely divergent results. He, therefore, abandoned the purely intellectual See also:sphere and proposed an inquiry into the data given by the senses, from which he held that all true knowledge really comes. Instead of postulating See also:matter and See also:form, he bases existence on matter and force. This force has two opposing elements: See also:heat, which expands, and See also:cold, which contracts. These two processes See also:account for all the diverse forms and types of existence, while the See also:mass on which the force operates remains the same.

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harmony of the whole consists in this, that each See also:separate thing develops in and for itself in accordance with its own nature while at the same time its See also:motion benefits the See also:rest. The obvious defects of this theory, (I) that the senses alone cannot apprehend matter itself, (2) that it is not clear how the multiplicity of phenomena could result from these two forces, and (3) that he adduced no See also:evidence to substantiate the See also:TELFORD 573 existence of these two forces, were pointed out at the time by his See also:pupil, See also:Patrizzi (see See also:article on PA'rxizzI, See also:FRANCESCO). Moreover his theory of the cold See also:earth at rest and the hot See also:sun in motion was doomed to disproof at the hands of See also:Copernicus. At the same time, the theory was sufficiently coherent to make a great impression on Italian thought. When Telesio went on to explain the relation of mind and matter, he was still more heterodox. Material forces are, by See also:hypothesis, capable of feeling; matter also must have been from the first endowed with consciousness. For consciousness exists, and could not have been See also:developed out of nothing. Again, the soul is influenced by material conditions; consequently the soul must have a material existence. He further held that all knowledge is sensation (" non ratiope sed sensu ") and that intelligence is, therefore, an agglomeration of isolated data, given by the senses. He does not, however, succeed in explaining how the senses alone can perceive difference and identity. At the end of his See also:scheme, probably in deference to theological prejudices, he added an See also:element which was utterly See also:alien, namely, a higher impulse, a soul superimposed by See also:God, in virtue of which we strive beyond the See also:world of sense. The whole See also:system of Telesio shows lacunae in See also:argument, and See also:ignorance of essential facts, but at the same time it is a fore-runner of all subsequent See also:empiricism, scientific and philosophical, and marks clearly the See also:period of transition from authority and reason to experiment and individual responsibility.

Beside the De Rerum Natura, he wrote De Somno, De his quae in aere fiunt, De Mari, De Cornelis et Circulo Lacteo, Deusu respirations, &c.

End of Article: TELESIO, BERNARDINO (1509-1588)

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