Task: Categorize the tweet's emotional expression, classifying it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that reflect the tweeter's state of mind.
Tweet: #Worry, #doubt, #fear and #despair are the enemies which slowly bring us down to the ground and turn us to dust before we die.
This tweet contains emotions: 
disgust, fear, optimism, sadness