Quemadmodum §8

⁸ Let us recall that in every age the Church has exercised the most diligent care of the young and has rightly deemed this as an official mission assigned in a very special way to her charity. And as she did this and continues to do it, she undoubtedly was following in the footsteps and obeying the injunctions of her Divine Founder, Who, gently gathering the children around Him, said to the Apostles who rebuked their mothers: "Let the little children come to me, and do not hinder them, for of such is the kingdom of God" ( Mark 10, 14). For Christ, as Our predecessor of immortal memory, Leo the Great, very well says, "loves childhood which He had first assumed in mind and body. Christ loves childhood, the school of humility, the norm of innocence, the model of meekness. Christ loves childhood towards which He directs morality, to which He leads back the old age of men. Those whom He calls to His eternal kingdom above He inspires to follow His example" ( Serm . XXXVII C. 3, ML 54, 258 C).