"My Brother STEWART, writing in Roe v. Wade, supra, says that our decision in Griswold reintroduced substantive due process that had been rejected in Ferguson v. Skrupa, 372 U. S. 726. Skrupa involved legislation governing a business enterprise; and the Court in that case, as had Mr. Justice Holmes on earlier occasions, rejected the idea that "liberty" within the meaning of the Due Process Clause of the Fourteenth Amendment was a vessel to be filled with one's personal choices of values, whether drawn from the laissez faire school, from the socialistic school, or from the technocrats. Griswold involved legislation touching on the marital relation and involving the conviction of a licensed physician for giving married people information concerning contraception. There is nothing specific in the Bill of Rights that covers that item. Nor is there anything in the Bill of Rights that, in terms, protects the right of association or the privacy in one's association. Yet we found those rights in the periphery of the First Amendment. NAACP v. Alabama, 357 U. S. 449, 357 U. S. 462. Other peripheral rights are the right to educate one's children as one chooses, Pierce v. Society of Sisters, 268 U. S. 510, and the right to study the German language, Meyer v. Nebraska, 262 U. S. 390. These decisions, with all respect, have nothing to do with substantive due process. One may think they are not peripheral to other rights that are expressed in the Bill of Rights. But that is not enough to bring into play the protection of substantive due process."