Róbert Grosseteste a jeho metafyzický spis O svetle alebo o počiatku foriem
Robert Grosseteste and His Metaphysical Treatise On the Light or on the Beginning of Forms

Summary/Abstract: The aim of this paper is to present the metaphysic of light postulated by the medieval author, bishop of Lincoln, Robert Grosseteste, in the well-known treatise entitled De luce seu de inchoatione formarum. In this excellent work Robert Grosseteste created the unique concept of light understood as the first corporeal form that gives to matter dimension and movement. His teaching is based on Aristotle terminology but the content is far from being Aristotelian. The main difference between the philoso¬phy of Aristotle and Robert Grosseteste is seen in their comprehension of matter. It is because the matter for Robert Grosseteste ceases to be the pure potency as it was in the teaching of Aristotle. Matter in Grosseteste’s view contains some minimal reality. So matter also becomes a simple substance. The role of form is then to accomplish, actualize and perfect matter. In the presented teaching of Robert Grosseteste it remains essential to understand that light for Grosseteste is not the simple physical light as we experience in our lives. According to the bishop of Lincoln, light becomes the interme¬diate form between the first matter and the concrete matters of the four elements. So light comes to be a spiritual, simple substance. In addition, light exists at the beginning of the world as well. At the moment of the creation of the world, the point of light started to diffuse itself in all directions and by generating the spheres of light, it con¬structed all the cosmos.

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