If you want to combat error, critique your in-group. You speak their language and they trust you, so you might persuade someone. If you want to raise your status, critique your out-group. They won’t listen, but your in-group will love it.
Therefore, the best warfare strategy is to attack the enemy's plans, next is to attack alliances, next is to attack…
The best way to keep a prisoner from escaping is to make sure he never knows he’s in prison.
The kind of conversation I like is one in which you are prepared to emerge a slightly different person.