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: The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.
This tweet contains emotions: 
joy, optimism, pessimism