Task: Analyze the tweet's sentiment and assign it to either 'neutral or no emotion' or one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
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