Thinking about the value of vigorous disagreements. And how quickly those disagreements can divide people.
Everyone marveled at how Bonhoeffer and Hildebrandt lived "in a state of permanent dispute" that was somehow never acrimonious. They obviously enjoyed the constant theological bickering. It constituted entertainment for them, allowing them to exercise their incredible wit, much of which went over the heads of anyone listening. Hildebrandt's biographers write that sometimes "when they were both involved in an argument Franz would look up and say 'What was that? I'm sorry I didn't hear a word.'" Of course he had heard everything. And then the two of them would "dissolve into laughter."