Abstract

PREFACE WORD Hilmi Ziya Ülken was born and educated in Istanbul during the last period of the Ottoman Empire and worked in many fields of the intellectual life of the newly established Republic. Although he was interested in many fields of social sciences, he gained fame in the fields of Turkish thought and Islamic philosophy, and undertook important tasks in revealing and introducing medieval Islamic thinkers and post-Tanzimat Turkish thought. Again, due to his deep knowledge of Eastern and Western philosophies, he was a thinker who made comparative studies and revealed the similarities and differences in both cultures. Apart from philosophy, which is his main field of interest, he also wrote works in the fields of sociology, anthropology, logic, history, novels, poetry, painting, miniature painting and even calligraphy. Ülken served as a bridge to the disconnect in our culture due to the Alphabet Revolution through the works he wrote and the students he trained. He made great contributions to Turkish-Islamic thought with his maturity period works, especially when he was a faculty member in the field of systematic philosophy at Ankara University Faculty of Theology. The philosophy of being, which constitutes the main axis of our study, is intertwined with metaphysics and ontology. Metaphysics, which deals with the question of "what being is", and ontology, which seeks to answer the question of "what kind of the same things exist in essence", are closely related; in fact, it is almost impossible to separate these two fields. Metaphysics, or the philosophy of being, is the most important and yet the most problematic field of philosophy. This is because throughout the history of philosophy there are many philosophers who do not see metaphysics as a field of philosophy. Especially in the Enlightenment period, metaphysics was seen as unobservable and incapable of meaningful discourse because it included topics such as God, the soul and universals. Some positivist thinkers even saw metaphysics as a continuation of animist discourse, the biggest obstacle to progress and Enlightenment, and criticized it severely. As a continuation of this understanding, metaphysics has been viewed negatively in our country since the early years of the Republic, and some philosophers have ignored an important field of philosophy by saying, "Metaphysics is not philosophy; philosophy is not metaphysics." In fact, in contemporary Western philosophy, Heidegger, Heidegger, Heidegger, Heidegger, Heidegger, Heidegger, Heidegger, Heidegger, Heidegger, Heidegger, Heidegger. In fact, in contemporary Western philosophy, philosophers such as Heidegger (1889-1976), Sartre (1905-1980) and Merleau-Ponty (1908-1961) attempted to demolish metaphysics in order to solve the problem of existence, but in doing so they themselves had to do metaphysics. When we ignore metaphysics, we ignore an important field of philosophy and an important function of the philosopher. Because in the pithy words of Ibn Rushd (1126-1198), "Man is a being who does metaphysics." Again, according to the Andalusian philosopher Ibn Bâjce (1077-1139), a virtuous society is one that emphasizes the metaphysical dimension of human beings. Although Ülken grew up in a period when metaphysics was viewed negatively, he wrote many works in this field and attached great importance to metaphysics. In fact, one of his first works was Metaphysics (1928), which is important in this respect. In addition, one of his mature works, Being and Becoming (1968), which is a summary of his philosophy, also shows the importance he attached to metaphysics. Ülken attached great importance to the philosophy of being (ontology) in his philosophical studies. He even wrote on this subject in his Felsefe Dersleri: Bilgi ve Vücûd Nazariyeleri (Metafizik) (Philosophy Lectures: Knowledge and Body Theory -Metaphysics) (1928), Aşk Ahlâkı (Love Ethics) (1931), İnsanî Vatanperverlik (Humanitarian Patriotism) (1933), and Varlık ve Oluş (Being and Becoming) (1968). These works on ontology are among the first publications in his field in Turkish. According to him, the basic subject of philosophy is existence. Other fields should be built on this philosophy. During our study, the most important problem was the change in Ülken's thought between his works. We also encountered difficulties such as the scattered nature of his works, the lack of a systematic system, the lack of methodological sensitivity in footnotes and citations, and the use of some terms in their original form instead of their Turkish equivalents.