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: If you want others to be #happy, practice #compassion. If you want to be happy, practice compassion.' Dalai Lama
This tweet contains emotions: 
joy, love, optimism