First is the distinction between reaction and response. Reaction is dominated by the other person. He insults you: you get angry, and then you act out of anger. This is reaction. You are not an independent person; anybody can pull you this way or that way. You are easily affected; you can be blackmailed emotionally. Reaction is an emotional blackmail. You were not angry. The man insulted you, and his insult created anger; now out of anger comes your action.
Response is out of freedom. It is not dependent on the other person. The other person may insult you, but you don’t become angry; on the contrary you meditate on the fact – why is he insulting you? Perhaps he is right. Then you have to be grateful to him, not get angry.
Perhaps he is wrong. If he is wrong, then for his wrong why should you burn your heart with anger?