EN
The article presents and analyzes premises of metaphysics in Francisco Suarez, relying on his main work: 'Metaphysical disputations'. It is shown that the starting point of the metaphysics developed by that Spanish Jesuit was the correlative epistemological structure of the formal and objective concept of being as such, which acquires a privileged status due to its unique range. The formal concept, or an act of cognition, is the foundation of unity of the experience of being, whereas the object of that act of cognition makes it possible to encompass the whole world and disregard its specific determinations. The initial premise is complemented with another, in which Suarez establishes real essence as the object of metaphysics, and takes it to encompass not only actual beings, but also possible, scil. inherently consistent beings. Plausibility of these two premises is derived from two senses of the word 'ens'.