Task: Determine the prevailing emotional tone of the tweet, categorizing 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 most accurately represent the tweeter's mental state.
Tweet: I have learned over the years that when one's mind is made up, this diminishes fear. –Rosa Parks #quotes #motivation
This tweet contains emotions: 
optimism, trust