Task: Analyze the tweet's emotional connotations 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 best portray the tweeter's mental state.
Tweet: Do not grow weary of doing good' a lasting legacy @billclinton @ClintonGlobal #CGI2016 #thankfulmoment @ProjectThankful
This tweet contains emotions: 
joy, optimism