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: @MHChat #mhchat Childhood experiences inform adult relationships. We have associative memories Not a question of ability to process #sadness
This tweet contains emotions: 
pessimism, sadness