Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: I saved him after ordering him to risk his life. I didn't panic but stayed calm and rescued him.
This tweet contains emotions: 
optimism