Heidegger’s Question, Descartes’ Silence and Tashkubr？zadah’s Answer

Descartes, one of the 17th century philosophers, likens philosophy to a tree in the context of the classification of sciences. According to him, philosophy is a tree: roots are metaphysics, body is physics and branches are medicine, mechanics and ethics. This classification is also called as the tree of philosophy and it symbolizes the scientific paradigm of the Cartesian tradition and therefore the modern philosophy in general. Descartes' famous tree was shaken with a heavy question asked three centuries later by the German philosopher Heidegger. Heidegger asks the French philosopher: “What is the soil of the Philosophy tree?”. We want to go back in time before Descartes, keeping this challenging question of Heidegger and aiming to find the answer given by the famous Ottoman scholar Tashkubrizadah. In his three-volume work called as Miftah al-Sa‘adah, Tashkubrizadah sets out a very distinctive classification of ‘ul？m that have not seen before. What also attracts our attention here is that Tashkubrizadah also draws a tree symbol just like Descartes in his classification. We see this foundation in the section headings of his work. These headings also have a special importance in terms of showing the boundaries and depth of Ottoman ‘ilm tradition