Task: Analyze the tweet's emotional connotations and classify 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 best portray the tweeter's mental state.
Tweet: Very important thing for today: \n\nDo not #bully yourself with #100DaysOfCode \n\nBelieve me, It ruins fun!
This tweet contains emotions: 
sadness