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: Keep in mind. We're all weak. Don't insult people just because they're human.
This tweet contains emotions: 
anger, disgust, optimism, sadness