Cadernos Ultramares seeks to present Brazilian culture and thought in a qualified way, through volumes bringing together important essays by renowned authors in different areas of knowledge. This book brings together two facets of Gabriel Cohn, one of the most important Brazilian sociologists: "Temporalidades" is a reflection on time in sociology, in dialogue with and in homage to the Luso-Mozambican sociologist Hermínio Martins, and "O tempo e o modo" also reflects on this issue from a Marxist perspective. Civilization, citizenship and barbarism" presents an instigating reflection on the relationship between civility and democratic political action.