Task: Analyze the tweet's emotional connotations and classify it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best portray the tweeter's mental state.
Tweet: We musn't allow bitterness and anger to make our hearts infertile to God’s gifts.
This tweet contains emotions: 
anger, joy, optimism