Given the tweet "The man who is a pessimist before 48 knows too much; if he is an optimist after it, he knows too little.'\n-Mark Twain", identify any present emotions from this list: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. If none are present, answer "neutral or no emotion".
optimism, pessimism, trust