Task: Assess the emotional content of the tweet and classify it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best represent the tweeter's mental state.
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