How Should Christians Argue?

How should Christians argue? Leave aside, for now, the question of how Christians have argued in the past. Leave aside the many times throughout history -- or throughout this morning -- that those of us who call ourselves Christians have failed to live up to Christian ideals in our disagreements. How should our ideals animate our arguments? And, more specifically, how should we make arguments as writers? Whether we're writing a tweet or a term paper, a text message or a dissertation, which Christian virtues should guide our approach?