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: .@marcorubio mentions his high school-aged daughters, 'should be a joyous occasion' when they go to college, not bring 'fear,' 'trepidation'
This tweet contains emotions: 
fear, joy, optimism