My review of de Sousa Santos’ book for the Educational Journal of Living Theories is in two parts. In Part One I share my understandings of some of Santos’ concepts that are new to me. These include ideas on the abyssal line; subaltern insurgent cosmopolitanism; epistemicide; ecology of knowledges; intercultural translation. In Part Two I explain my excitement with Santos’ ideas by showing how I am drawing insights from these ideas in the evolution and transformation of my own living-educational-theory, and in my exploration of the implications of Santos’ ideas for Living Theory research as a social movement