How To Compose A Successful Critical Commentary

• You should attempt to re-express your target’s position so clearly, vividly, and fairly that your target says, “Thanks, I wish I’d thought of putting it that way.”
• You should list any points of agreement (especially if they are not matters of general or widespread agreement).
• You should mention anything you have learned from your target.
• Only then are you permitted to say so much as a word of rebuttal or criticism.

- Daniel Dennett attributing to Anatol Rapoport (via here)