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: 'We can throw stones, complain about them, stumble on them, climb over them, or build with them.' — William Arthur Ward. #inspiring
This tweet contains emotions: 
joy, optimism