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: It was a bright cold day in April, and the clocks were striking thirteen. ~ George Orwell, 1984
This tweet contains emotions: 
joy