Some exchanges of reasons are agonistic. Others work mutually, as in planning and adjusting divergent understanding. Mutual argumentation subconsciously yields judgment that integrates and clarifies a common vision coordinating interrelated lives. It harmonizes agents sharing a space of action and understanding. Pierre Bourdieu held that such thought generates and expresses culture, patterning a logic that reflexively constrains itself. This discussion examines Bourdieu’s views as an analysis of mutual argumentation.