Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: Holding a #grudge doesn't make you #strong; it makes you #bitter. #Forgiving doesn't make you #weak; it sets you #free.
This tweet contains emotions: 
anger, disgust, optimism