Task: Evaluate the tweet for emotional cues 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 indicate the tweeter's state of mind.
Tweet: To insure good health: Eat lightly, breathe deeply, live moderately, cultivate cheerfulness, and maintain an interest in life.
This tweet contains emotions: 
joy, optimism