Are valedictorian's free to say whatever they want? If so, he had a right to get religious.
If the speeches are routinely reviewed and censored by school authorities, then he shouldn't have been allowed to do it and can be sanctioned for doing it without permission.
Whatever the case, it was rude of him to impose his religion on a general audience.
"With me everything turns into mathematics."
"It is not enough to have a good mind. The main thing is to use it well."
"It is truth very certain that, when it is not in one's power to determine what is true, we ought to follow what is more probable." -- Rene Descartes
"It's always reassuring to find you've made the right enemies." -- William J. Donovan
"Men did not make the earth ... it is the value of the improvement only, and not the earth itself, that is individual property... Every proprietor owes to the community a ground rent for the land which he holds." -- Thomas Paine, Agrarian Justice
One for the good guys!!!!
"God Bless Our Troops in Harms Way."
If you want your children exposed to religion in school, then send them to the private religious school of your choice.