It is true that for many aged saints, gray hair and a good head go hand in hand. But for others, far too many others, length of life only entrenches stubbornness, irritability, and careless ways of thinking and living. Life experience may increase inevitably with age, but without some long-term pattern of receptivity and intentionality, multiplied experiences will only create more confusion than clarity.
David Mathis, Habits of Grace: Enjoying Jesus through the Spiritual Disciplines
maturity