Task: Determine the dominant emotion in the tweet and classify it as either 'neutral or no emotion' or one of the eleven provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: Don't ever grow weary doing good....Don't just see the headlines; look at the trend lines for hope.' @billclinton #CGI2016
This tweet contains emotions: 
optimism