Task: Categorize the tweet's emotional tone as either 'neutral or no emotion' or identify the presence of one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: Anger is cheap and politeness is expensive. Don't expect everybody to be polite. #ThoughtfulThursday  #politeness
This tweet contains emotions: 
optimism