EN
The article is the compilation of various theses of consequent Thomism which are distinguished by Mieczysław Gogacz. The author starts with differentiating orders of being and cognition and thus metaphysics and epistemology. Then, by referring to Aristotelian difference between potential and active intellects he begins with analysis of cognition. He claims that potential intellect is the end of intellectual cognition and active intellect prepares intelligible contents of cognition (intelligibilia) by abstracting them from material provided by senses (sensibilia). In this way, the object of intellection becomes the object of metaphysics. The principles (archaia) of individual being are object of metaphysics. Because of reling on sensible aspect of their object, the sciences differ from metaphysics. Gogacz gets from Thomas Aquinas the structure of individual being as an existence, which is an act of being, and an essence, which is the set of potentialities in a being. The mere essence is not homogeneous, but it is proportionate an act of form and indicated by the form kind of potentiality (immaterial, immaterial and material all the same time, and only material). Autonomous being, substance is enriched with having accidents – dependent beings. Gogacz claims that set of accidents shapes in potentiality of being form under the influence of final causes. In this way, he explains the variability of accidents. Except from accidents, all beings come from effective cause of their existence – God. The author considers deeper this issue, as well as the concept of existence, problems of causality, transcendental properties and first principles. In his consideration, he devotes the separate place for concept of God as Subsisting Act of Existence (Ipsum esse subsistens) and theory of human being as a person.