I’m not sure what the answer would be because there’s no question
Love is the answer you are looking for. Orsino is in love with Olivia. Olivia is in love with Cesario. Viola is in love with Orsino. Therefore your answer is Love.
It means that we must always stay in the middle of opinions and never move completely to one side. (ps. I am so sorry but I might be wrong).
D Stieglitz published a photography magazine called Camera Work