This document provides a comprehensive overview of the public and political activities of philosopher Ladislav Hejdánek during the transformative period from January 1968 to May 1969. Originally submitted to the Institute of Philosophy of the Czechoslovak Academy of Sciences, the report details Hejdánek’s extensive involvement in various organizations and editorial boards during the Prague Spring. His engagements included leadership roles in trade unions, the Czech Socialist Academy, and the Society for Human Rights. Furthermore, it highlights his significant contributions to ecumenical dialogue through the Evangelical Church of Czech Brethren and the Ecumenical Movement of Intelligentsia and Students. Hejdánek also served on the editorial boards of influential publications such as Tvář and Křesťanská revue. The text serves as a vital historical record of his efforts to foster civic engagement, human rights, and intellectual pluralism. It reflects the multifaceted nature of his activism, bridging the gap between religious thought and social reform during a pivotal era in Czechoslovak history before the onset of normalization.