Task: Analyze the tweet's sentiment and assign it to either 'neutral or no emotion' or one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: Failure is a part of success. You can't experience the joy of success with also experiencing failure. #bethehero #success #failure #joy
This tweet contains emotions: 
joy, optimism