10 Now in order that no mistake be made in this work of utmost importance, and in order to conduct it in the best manner possible with the help of God's grace, it is necessary to have a clear and definite idea of Christian education in its essential aspects, viz., who has the mission to educate, who are the subjects to be educated, what are the necessary accompanying circumstances, what is the end and object proper to Christian education according to God's established order in the economy of His Divine Providence.
Source: Divini Illius Magistri (Vatican.va)