[Louis] Brandeis improves the prose. He simplifies it and perfects the balance of the sentence so it becomes even more memorable and aphoristic.

[Oliver Wendell] Holmes never believed in the truth and morality of the laws he was upholding. He said, "I loathe the thick-fingered clowns we call the people."

I don't think he would have had any trouble answering Justice Sonia Sotomayor's excellent challenge in a case involving GPS surveillance. She said we need an alternative to this whole way of thinking about the privacy now which says that when you give data to a third party, you have no expectations of privacy. And [Louis] Brandeis would have said nonsense, of course you have expectations of privacy because it's intellectual privacy that has to be protected. That's my attempt to channel him on some of those privacy questions.

Louis Brandeis beloved uncle, Lewis Dembitz, was an ardent abolitionist. His mother was an abolitionist in Kentucky at a time when Brandeis remembered hearing the shot from the confederate soldiers after the second battle of Bull Run. Amazing to think that he heard that and I studied with one of his last law clerks in college. And that encapsulates almost all of American history.

I think [Louis] Brandeis challenges all of the current justices. As he said, "If we would guide by the light of reason, we must let our minds be bold." You have to take the values that the framers were concerned about and translate them into this new age.

That strain of anti-monopoly crusading egalitarianism really runs throughout American history from [Tomas] Jefferson to Woodrow Wilson, that finds its apotheosis in [Louis] Brandeis, continues through the New Deal, but then it sort of peters out in the '60s because progressives in particular become more interested in extending equality to minorities, and women, and other excluded groups, and little more suspicious of these old white guys, often from the south, who were crusaders against monopolies.

I think even though the court is moving toward trying to translate the Constitution into a digital age, there was that wonderful unanimous decision that Chief Justice Roberts wrote saying you can't search a cellphone on arrest without a warrant.