Do not separate text from historical background. If you do you will have perverted and subverted the Constitution which can only end in a distorted bastardized form of illegitimate government.
When the state or federal government control the education of all of our children they have the dangerous and illegitimate monopoly to control and influence the thought process of our citizens.
Schools are not intended to moralize a wicked world but to impart knowledge and develop intelligence with only two social aims in mind: prepare to take on one's share in the world's work and perhaps in addition lend a hand in improving society after schooling is done.