PL
The author seeks an answer to the following question: can we relate the work of Franciszek Karpiński to the philosophical achievements of Gottfried Wilhelm Leibniz? The article proposes to treat Karpiński’s work as a philosophical inquiry and notices in it a clearly defined metaphysical and axiological principle, which can be treated as an independently constructed version of Leibniz’s principle of sufficient reason. The notes in the diary confirm the assumption that painful life experiences did not stop the poet’s efforts to build a vision of the world that we have reasons to call the “philosophy of optimism”.