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: #ArchangelSummit @sethgodin  Anyone can be brave but you just have to last 5 mins longer than everyone else. #leadership #fear
This tweet contains emotions: 
fear, optimism