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: A cheerful heart is good medicine, but a broken spirit saps a person's strength.' {Proverbs 17:22} #WednesdayWisdom
This tweet contains emotions: 
joy, optimism