Existentialism, which has had its influence in the history of world philosophy and the development of human thought, especially the French existential philosophy, has a philosophical analysis of human freedom, responsibility, free will, existence between life and death, and the essence of existence. is significant with its unique approach. In this, Jean-Paul Sartre's philosophical conceptual expression of the problem of man and his existence not only attracted the attention of intellectuals of the society who directly witnessed the socio-political crisis that occurred in his time, but is also relevant in the philosophical understanding of modern socio-political problems. The article discusses the humanitarian aspects of Jean-Paul Sartre's existential philosophy.

The article substantiates Abu Ali ibn Sina's philosophical views on existence and knowledge based on scientific sources. Abu Ali Abu Ali ibn Sina's ontological views were mainly influenced by Neoplatonism. The main categories of the doctrine of existence are matter, motion, space, time, substance. The article mentioned that Abu Ali ibn Sina put forward the opinion that nature is eternal and eternal, its laws do not change by themselves, man is able to understand them, the soul is determined by the activity of the body, and its individual immortality is impossible.

In this article, the great Eastern thinker Abu Ali ibn Sina's rare works highlight the issues of human perfection, culture and raising philosophical reasoning. Today's reforms in the field of education encourage the creativity of our forefathers to be deeply researched in every way and raise the weight of our national spiritual values. In particular, the philosophical heritage of Abu Ali ibn Sina is multifaceted, and their comparative study is of great importance in the current historical stages when the foundations of civil society are being created.

In this article the al analysis of the astronomical views of scolars who are of special importance in the natural-scientific, social-philosophic development of the Middle Ages Eastern philosophy and it’s relation to the natural -scientific philosophical views of who is the object of our work influence is considered.

The following article is devoted to the concept of existence from the perspective of Martin Heidegger’s philosophy. Existence is the central category of existential philosophy