The first corporeal form, which some call corporeity, I hold to be light. For light of its own nature diffuses itself in all directions, so that from… - Robert Grosseteste
" "The first corporeal form, which some call corporeity, I hold to be light. For light of its own nature diffuses itself in all directions, so that from a point of light a sphere of light of any size may be instantly generated, provided an opaque body does not get in the way. Corporeity is what necessarily follows the extension of matter in three dimensions, since each of these, that is corporeity and matter, is a substance simple in itself and lacking all dimensions. But simple form in itself and in dimension lacking matter and dimension, it was impossible for it to become extended in every direction except by multiplying itself and suddenly diffusing itself in every direction and in its diffusion extending matter; since it is not possible for form to do without matter because it is not separable, nor can matter itself be purged of form. And, in fact, it is light, I suggest, of which this operation is part of the nature, namely, to multiply itself and instantaneously diffuse itself in every direction. Therefore, whatever it is that produces this operation is either light itself or something that produces this operation in so far as it participates in light, which produces it by its own nature. Corporeity is therefore either this light, or is what produces the operation in question and produces dimensions in matter in so far as it participates in this light itself and acts by virtue of this same light. But for the first form to produce dimensions in matter by virtue of a subsequent form is impossible. Therefore light is not the form succeeding this corporeity, but is this corporeity itself.
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About Robert Grosseteste
Robert Grosseteste (c. 1175 – 1253) was an English statesman, scholastic philosopher, theologian, scientist, pastor, poet, educator and Bishop of Lincoln, Province of Canterbury, England. From about 1220 to 1235 he wrote a host of scientific treatises and was an early supporter of what was to become the scientific method. Roger Bacon expressed his indebtedness to the work of Grosseteste and A.C. Crombie describes him as "the real founder of the tradition of scientific thought in medieval Oxford..." Translations of Robert Grosseteste's quotes in this article are due to A.C. Crombie, Robert Grosseteste and the Origins of Experimental Science 1100-1700 (1953) unless otherwise noted.
Also Known As
Alternative Names:
Robert Greathead
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Bishop Grosthead
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Robert de Lincoln
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Robert Grossestus
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Robert Grotest
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Robert Grostte
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Robert Grostete
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Robert Grostest
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Robert Grosstete
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Robert Grosstête
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Robert of Lincoln
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Rupert of Lincoln
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Robert Capito
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Robert Grossatesta
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Robert Groshead
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Robert Grossoteste
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Robert Grosse-Tête
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Robert Grosthed
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Robert Grosthead
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Roberto Grossatesta
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Robertus Grosseteste
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Robertus Grossetestus
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Robertus Grossatesta
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Robert Grosse-Tete
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Robert Grosteste
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Additional quotes by Robert Grosseteste
Because the purity of the eye of the soul is obscured and weighed down by the corrupt body, all the powers of this rational soul born in man are laid hold of by the mass of the body and cannot act and so in a way are asleep. Accordingly, when in the process of time the senses act through many interactions of sense with sensible things, the reasoning is awakened mixed with these very sensible things and is borne along in the senses to the sensible things as in a ship. But the functioning reason begins to divide and separately consider what in sense were confused. ...But the reasoning does not know this to be actually universal except after it has made this abstraction from many singulars, and has reached one and the same universal by its judgement taken from many singulars.
One cause, in so far as it is one, is productive of only one effect. I do not rule out several efficient causes of which one is nearer and another more remote in the same order. Thus when I say simply 'animal', I do not exclude another substance or particular substance. Hence motion, in so far as it is one, is productive of only one effect. But motion is present in every body from an intrinsic principle which is called natural. Therefore an efficient cause simply proportional to the motion is present in all bodies. But nothing is present in common in every body except primitive matter and primitive form and magnitude, which necessarily follows from these two, and whatever is entailed by magnitude as such, as position and shape. But simply through magnitude a body does not receive motion, as is clear enough when Aristotle shows that everything that moves is divisible, not, therefore, simply because of magnitude or something entailed by magnitude is a body productive of motion. Nor is primitive matter productive of motion, because it is itself passive. It is therefore necessary that motion follow simply from the primitive form as from an efficient cause.
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