Kvirin Vasilj (1917 – 2006), an authentic thinker of the 20th century, in his philosophical deliberation, he touches on various aspects of human existence, including those that are today identified as bioethical challenges. Thus, bioethics is present in his deliberations, although the term bioethics as such is not found in any of his six hundred works, and they often relate to the meaning, quality, the beginning and the end of human life. Between these two endpoints of an individual’s existence, Vasilj places a considerable emphasis on the very practical dimensions of duration, nature protection, quality of life and more. It should also be noted that Vasilj often uses these themes as a basis on which to present or explain some anthropological, even ontological, issues.; Kvirin Vasilj (1917. – 2006.), autentični mislilac 20. st., u filozofskim promišljanjima dotiče se različitih aspekata ljudskog postojanja, pa i onih koji se danas identificiraju kao bioetički izazovi. Tako je bioetika prisutna u njegovim promišljanjima, mada pojam bioetika kao takav ne nalazimo niti u jednom od njegovih šestotinjak djela, a tiču se najčešće smisla, kvalitete, početka i svršetka ljudskoga života. Između tih dviju krajnjih točaka pojedinčeva postojanja Vasilj značajan naglasak stavlja upravo na praktične dimenzije trajanja, zaštitu prirode, kvalitetu življenja i drugo. Valja istaknuti i to da Vasilj ove teme nerijetko koristi kao podlogu na kojoj će iznijeti ili kojom će obrazložiti neka antropološka, pa i ontološka, pitanja.