Determine the emotional tone of the following tweet: "#haikuchallenge #haiku\n\nThe crisp autumn air\nMy freedom purchased through death\nNo one will mourn me". Use the provided emotions: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. Respond with the emotions you identify or "neutral or no emotion".
pessimism, sadness