Task: Categorize the tweet's emotional expression, classifying 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 reflect the tweeter's state of mind.
Tweet: I envy the relentless, your cheerful smile aimed at the pouring rain, your positive attitude is an art you have continually mastered.
This tweet contains emotions: 
joy, optimism