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: #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