The chapter addresses the philosophical currents of modernity and postmodernity and the impossibility of subsuming them under unified concepts such as “modernity” or “postmodernity.” There is an enormous diversity of philosophical approaches and worldviews that share no common foundations. This plurality of perspectives results from secularization and the detachment from religious frameworks of interpretation that previously shaped thought. In the present, the question of truth is increasingly posed in relation to the subject, leading to a loss of firm certainties and a crisis of the claim to truth. Ultimately, the possibility of objective truth is called into question, and philosophical discussion moves between relativism and the pursuit of universal validity.