EN
The first of these ‘layers’ is hellenistic Neoplatonism of Proclus which is specifically deepened in Aquinas expositio by referring to ‘Stoichéiosis Theologiké’. The second ‘layer’ is monotheistic and creationist neoplatonism of the author of The Book which is sometimes corrected by Thomas Aquinas through depictions of Pseudo-Dionysius. The third and clearly separated doctrinal ‘layer’ of lecture is veritas rerum in which should be seek Aquinas’ views. In this perspective it is easier to unravel terminological difficulties which are in Thomas Aquinas’ text. It seems that many technical terms, such as esse, essentia, existentia, even substantia and ens should be ‘read’ in the ‘layer’ perspective which they located in. The article analyze first of the issue of esse. If we consider this ‘layered’ construction Commentary of Thomas Aquinas recognizing that in veritatis rerum there are the Aquinas own views, without difficulty we will find in it the most important thesis of his own metaphysics: about being as an arrangement from esse, about the esse and essentia, about essentia as an arrangement form and some type of potency, about God as a Ipsum Esse Subsistens, about creation as a giving esse.