Love cannot be a duty, because it is not subject to will. It is a gift from heaven, the best that heaven has to bestow. Those who shut it up in a cage destroy the beauty and joy which it can only display while it free and spontaneous. Here, again, fear is the enemy. He who fears to lose what makes the happiness of his life has already lost it. In this, as in other things, fearlessness is the essence of wisdom.
~ Bertrand Russell, On Education