“The Lord asks of us only two things: love of His Majesty and love of neighbor…The most certain sign, in my opinion, as to whether or not we are observing these two laws is whether we observe well the love of neighbor.”
Teresa of Avila (1515-1582) Spanish saint who along with John of the Cross helped reform the Carmelite order. See The Collected Works of St. Teresa of Avila translated by Kavanaugh and Rodriguez 2:351.