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: On the wheel as we grow older and become aware of ourselves as individuals with a dull responsibility in life?
This tweet contains emotions: 
disgust, optimism, pessimism, sadness