Task: Determine the emotional state reflected in the tweet, categorizing it as 'neutral or no emotion' or as one or more of the specific emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best characterize the emotional tone.
Tweet: Difficulties are meant to rouse, not discourage. The human spirit is to grow strong by conflict. William Ellery Channing
This tweet contains emotions: 