Task: Categorize the tweet's emotional expression, classifying 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 reflect the tweeter's state of mind.
Tweet: Anger is cheap and politeness is expensive. Don't expect everybody to be polite. #ThoughtfulThursday  #politeness
This tweet contains emotions: 
optimism