School Quotes - page 98
In particular, at this point also urge governing authorities and parents to rule well and to send their children to school. Point out how they are obliged to do so and what a damnable sin they commit if they do not, for thereby, as the worst enemies of God and humanity, they overthrow and lay waste both the kingdom of God and the kingdom of the world. Explain very clearly what kind of horrible damage they do when they do not help to train children as pastors, preachers, civil servants, etc., and tell them that God will punish them dreadfully for this. For in our day and age it is necessary to preach about these things. The extent to which parents and governing authorities are now sinning in these matters defies description. The devil, too, intends to do something horrible in all this.
Martin Luther