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: @mar_de_palabras But I do think we need to experience a bit madness &amp; despair too. This is the stuff that makes us human.
This tweet contains emotions: 
optimism