Louis Brandeis

“ A long line of decisions by this court had also settled that in the exercise of the police power reasonable classification may be freely applied, and that regulation is not violative of the equal protection clause merely because it is not all-embracing. ”

“ The validity of the ordinances under the federal Constitution was drawn in question by objections properly taken below. A city ordinance is a law of the state, within the meaning of section 237 of the Judicial Code, as amended (Comp. St. § 1214) , which provides a review by writ of error where the validity of a law is sustained by the highest court of the state in which a decision in the suit could be had. ”

“ Ordinances of the city of San Antonio, Texas, provide that no child or other person shall attend a public school or other place of education without having first presented a certificate of vaccination. Purporting to act under these ordinances, public officials excluded Rosalyn Zucht from a public school because she did not have the required certificate and refused to submit to vaccination. ”