"love consists, not in the extent of our happiness, but in the firmness of our determination to try to please God in everything, and to endeavour, in all possible ways, not to offend Him, and to pray Him ever to advance the honour and glory of His Son and the growth of the Catholic Church. Those are the signs of love. . . ."
St. Teresa of Avila, Interior castle, Third mansions, chap. 2 (Complete works of St. Teresa of Jesus, translated and edited by E. Allison Peers, vol. 2 (London: Sheed & Ward, 1946), 233).