"Unquestionably, it is not reprehensible or useless to pray at length when one is free. This means when the obligations of other good and necessary works do not prevent us -- although even then we must always pray by the aspirations of the heart. But to pray at length does not mean, as some think, to pray with much speaking. Continual longing is not the same as much speaking."
-- Letter 130, 19
Prayer. O Lord, my God, let my soul praise you that it may love you, and let it recount to you your mercies that it may praise you for them all.
-- Confessions 5, 1