We cannot be sure if we are loving God, although we may have good reasons for believing that we are, but we can know quite well if we are loving our neighbor. And be certain that, the farther advanced you find you are in this, the greater the love you will have for God.
Teresa of AvilaBefore prayer, endeavour to realise Whose Presence you are approaching and to Whom you are about to speak, keeping in mind Whom you are addressing. If our lives were a thousand times as long as they are we should never fully understand how we ought to behave towards God, before Whom the very Angels tremble, Who can do all He wills, and with Whom to wish is to accomplish.
Teresa of AvilaGod gave us faculties for our use; each of them will receive its proper reward. Then do not let us try to charm them to sleep, but permit them to do their work until divinely called to something higher.
Teresa of Avila