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: “Optimism may sometimes be delusional, but pessimism is always delusional.” —Alan Cohen #believe
This tweet contains emotions: 
optimism