Examine 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" and determine which of these emotions are present: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. If there are no identifiable emotions, reply with "neutral or no emotion".
optimism, pessimism, trust