Determine the emotional tone of the following tweet: "Don't let the behavior of others destroy ur inner peace.' -Dalai Lama @OWNTV #healing #depression  #intuition #meditation #book". 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".
optimism, sadness