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: Being #relentless is absolutely the only way to success. Never, ever, ever give up!
This tweet contains emotions: 
joy, optimism