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: Sometimes the best motivations come from 'proving them wrong' #energy #relentless #MotivationalQuotes
This tweet contains emotions: 
fear, optimism