A Postgraduate student at the History of Philosophy Department, Faculty of Philosophy of the Catholic University of Lublin, Poland. He is working currently on the Ph.D. dissertation that regards the issue of the modalities of existence in Berkeley's philosophy. He graduated from the Catholic University of Lublin, Poland, with the Master of Art in Philosophy (Honours Degree), and the University of St Andrews, UK, with Master of Letters in Philosophy (Postgraduate Degree). As Socrates Erasmus exchange student, he completed also his studies in philosophy at the University of Sassari, Italy. In 1999-2000, he was a member of the editorial board of a literary magazine "Scriptores Scholarum", published in Lublin (Poland) by the "Brama Grodzka - Teatr NN" Centre (the institution for cultural activity and scholarly researches on the multicultural past of Poland), as a manager of the Philosophical Department. His areas of competence are metaphysics, epistemology and philosophy of mind, primarily in the philosophy of the seventeenth and eighteenth centuries (esp. Locke, Malebranche, Leibniz, and Berkeley), and of the contemporary analytical philosophy and phenomenology as well. He has focused his researches especially on the realism-idealism (antirealism) debate, and on the issue of the intentionality. His interests concern also some areas of the analytical philosophy of religion, philosophy of language, and ethics.