The article addresses the crucial question of the concept of truth within the context of the political and social changes in Europe in 1989. The author contrasts a student protest, emphasizing that "our cause must serve truth," with the political narrative that "truth serves our cause." This clash of ideas is situated within the broader context of a deep crisis in European civilization, affecting both the East and the West. The author argues that despite technological and economic problems, the fundamental shift lies in a change of mindset (metanoia) stemming from a different understanding of truth. This truth, drawing on biblical and medieval traditions (e.g., Jan Hus), is understood as something "greater and stronger than all" and as what "ought to be," rather than merely a derivative of being. It emphasizes that true reality is not just given, but also "the right one" that calls to us and demands our active response. Europe's future depends on the ability to listen to this call of truth and accept responsibility for it, which requires a fundamental transformation of thought and a return to European traditions of listening and humility.