This document consists of a retrospectively compiled index of Ladislav Hejdánek's ring binders from 1966, likely produced around 1991. The index provides a structured overview of Hejdánek's philosophical and theological preoccupations during this pivotal year. The entries cover a diverse range of topics, including the relationship between science and faith, an in-depth exploration of the concept of oikoumene, and issues surrounding secularization, myth, and metaphysics. A significant portion is dedicated to notes on Martin Heidegger's conception of truth and reflections on history, temporality, and critical thought. The document also records Hejdánek's participation in major intellectual gatherings, such as the Paulus-Gesellschaft dialogue in Mariánské Lázně, mentioning key figures of the era like J. L. Hromádka, J. Moltmann, and H.-G. Gadamer. This index serves as an essential bibliographic source for studying the evolution of Hejdánek's thought and his attempts to synthesize philosophical reflection with theological questions within the framework of modernity. It captures the formative atmosphere of the 1960s Czech intellectual scene and Hejdánek's contribution to the dialogue between faith, reason, and social practice.