Task: Evaluate the tweet for emotional cues 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 indicate the tweeter's state of mind.
Tweet: We musn't allow bitterness and anger to make our hearts infertile to God’s gifts.
This tweet contains emotions: 
anger, joy, optimism