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: You can't fight the elephants until you have wrestled the pigs. #quoteoftheday
This tweet contains emotions: 
anticipation, optimism