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: '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