In all countries, the mood that prevails in the school and the purity of the educational texts and reading material [given] youth have a profound influence on the life of the young generation. Certainly, this is true in this country where parents have far less influence over children than in other countries. [Accordingly,] the schools must have the highest quality of supervision and the reading and study materials given the students must reflect principles of purity and holiness in addition to being able to fulfill the pedagogic purpose [for which they were chosen]. Then we can hope that the younger generation will be “an upright generation who will be blessed” in all  particulars even if the conditions of their setting and their era are not desirable.

(I will write it in your hearts volume 2 letter 153)