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: Life is too short to be jealous, hating, keeping up mess, and worrying about things that do not concern you.
This tweet contains emotions: 
optimism