Task: Identify the primary emotion conveyed in the tweet and assign it to either 'neutral or no emotion' or one or more of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best capture the tweeter's mental state.
Tweet: The object of literature is to make man a wiser and happier being. The poet makes us happy because he tells us how we may become so.
This tweet contains emotions: 
joy, optimism, trust