Everywhere they will be a little flock, because mankind
grows quicker than Christendom and because men will not be Christians by custom and tradition, through institutions and history, or because of the
homogeneity of a social milieu and public opinion, but — leaving out of account the sacred flame of parental example and the intimate sphere of home, family and small groups — they will be Christians only because of their own act of faith attained in a difficult struggle and perpetually achieved anew.