39 It is to be borne in mind that nothing is more efficacious in winning for missionaries the confidence of fathers and mothers than devoted care bestowed upon their children. If the minds of the young are moulded to Christian truth and their characters fashioned according to Christian virtue, they will enrich and bring distinction to not only their families but also their communities. It not rarely happens that if the life of a Christian community be in any way remiss or lax, they succeed in restoring it to its pristine vigor.
Source: Evangelii Praecones (Vatican.va)