It is not possible to keep the innocence of childhood for ever; even if one wanted to preserve it, one could not do so, for life on earth sweeps it away. And as a child grows up it becomes more and more clever, and that gives it satisfaction. People will call it common sense, they will call it practicality, or whatever name they may choose; they will even call it wisdom. But the time of the soul's maturity eventually comes; and when once the soul has matured a new outlook on life arises.