Task: Categorize the tweet's emotional tone as either 'neutral or no emotion' or identify the presence of one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: Sir, my concern is not whether God is on our side; my greatest concern is to be on God's side, for God is always right.' - Abraham Lincoln
This tweet contains emotions: 
joy, optimism, trust