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: Bill Clinton: 'Do not grow weary of doing good.' @ClintonGlobal #CGI2016
This tweet contains emotions: 
joy, optimism