St Augustine on Love

I give you a new commandment: love one another: not as people who pretend to love in order to corrupt one another, nor indeed as people love one another genuinely but in a human way. Rather, they love one another as those who belong to God. All of them are children of the Most High and consequently brethren of his only Son. They share with each other the love with which he leads them to the end that will bring them fulfilment and the true satisfaction of their real desires. For when God is all in all, there is no desire that is unfulfilled.