Privacy is not for the passive.

[Louis Brandeis] insisted on the necessity of public reason, which he thought could only be achieved if all of us just take the time to inform ourselves about the best arguments on all sides of questions so that we can make up our own minds.

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.

William Howard Taft, who he embarrassed in these congressional hearings, attacks him as an emotionalist and a socialist and a cosmopolitan in terms that kind of have an anti-Semitic overtone. And even the pro-Brandeis press supported him in terms that really seem creepy today. There's this piece from Life magazine. It says, "Mr. Brandeis is a Jew. And until now there's never been a Jew on the Supreme Court. Perhaps it's time we have one."

Initially the papers said that the fact that Louis Brandeis was picked because he was Jewish. The New York Sun said he's the first Jew ever picked for the bench - a long and bitter fight expected in the Senate over confirmation.

But as I wrote the book [Louis D. Brandeis: American Prophet], I tried to write it as clearly and directly and passionately as possible just thinking of communicating to readers who might want to learn about this great thinker and be inspired by him as I was.

Louis Brandeis really inspired me to write this book [Louis D. Brandeis: American Prophet]. It was a crazy deadline. The editor said I'd miss the hundredth anniversary unless I pumped the thing out in six months, because I'd been delaying and dilly dallying for so long. So he both inspired me to get up early and write.