The publication presents the proceedings of the international symposium on Cultural Diversity and Transversal Values: East-West Dialogue on Spiritual and Secular Dynamics that was held at UNESCO Headquarters in Paris from November 7 to 9, 2005. The symposium sought to highlight the richness and fragility of cultural diversity in its various expressions, particularly in Europe and Asia, while also recalling the common values capable of bringing together these two distinct geocultural areas. Researchers from various fields and cultures were able to share their experiences and viewpoints in relation to five themes: The East-West Encounter in History, Mediators and Means of Dialogue, Cultural Diversity and Plurality of Values, The Impact of Modernity on the Transfer of Cultures, and Transversal Values in a Diverse World. The symposium suggested new avenues of dialog to revitalize the flow of ideas and cultures that influence ways of being and thinking in contemporary societies. Special emphasis was placed on the notions of temporality and spirituality underlying this age-old dialog forged from ruptures and continuations. This document can be consulted, in English, on the Internet.