"Without this guarantee that one may not be deprived of his rights, neither liberty nor property, without due process of law, the State's monopoly over techniques for binding conflict resolution could hardly be said to be acceptable under our scheme of things. Only by providing that the social enforcement mechanism must function strictly within these bounds can we hope to maintain an ordered society that is also just."

“No one was more sensitive than Mr. Justice Harlan to any suggestion that his approach to the Due Process Clause would lead to judges 'roaming at large in the constitutional field.'”

“This Court, limited in function in accordance with that premise, does not serve its high purpose when it exceeds its authority, even to satisfy justified impatience with the slow workings of the political process. For when, in the name of constitutional interpretation, the Court adds something to the Constitution that was deliberately excluded from it, the Court, in reality, substitutes its view of what should be so for the amending process.”

“The Constitution is not a panacea for every blot upon the public welfare, nor should this Court, ordained as a judicial body, be thought of as a general haven for reform movements.”

“This 'liberty' is not a series of isolated points pricked out in terms of the taking of property; the freedom of speech, press, and religion; the right to keep and bear arms; the freedom from unreasonable searches and seizures; and so on. It is a rational continuum which, broadly speaking, includes a freedom from all substantial arbitrary impositions and purposeless restraints.”

“The danger is perhaps not great if the people of one State, through their legislature, decide that Lady Chatterley's Lover goes so far beyond the acceptable standards of candor that it will be deemed offensive and non-sellable, for the State next door is still free to make its own choice. At least we do not have one uniform standard. But the dangers to free thought and expression are truly great if the Federal Government imposes a blanket ban over the Nation on such a book. The fact that the people of one State cannot read some of the works of D. H. Lawrence seems to me, if not wise or desirable, at least acceptable. But that no person in the United States should be allowed to do so seems to me to be intolerable, and violative of both the letter and spirit of the First Amendment.”

“His thinking threw light in a very introspective way on the entire process of the judicial function. His decisions, beyond just the vote they represented, were sufficiently philosophical to be of enduring interest. He decided the case before him with that respect for its particulars, its special features, that marks alike the honest artist and the just judge.”