I think some of the best advice I got as a young session musician — the first time I played on something — they came back and said, “Now just play me half of what you know. Okay, that was impressive, but that’s not what I need here.” So it’s really an exercise on what’s best going to serve the work in front of you, what’s the job that will do that the best.

It became such a big part of my life that even when I sleep in past 6 o'clock in the morning, I feel guilty because I hear my father's voice saying, you know, Arnold, that's not how this country was built, by sleeping in. Be useful. Do something. What are you doing now?

My mother-in-law’s advice, which she gave me on the day of our wedding — we were married in Marty’s home, and his mother took me into the bedroom, her bedroom and said, “Dear, I’d like to tell you the secret of a happy marriage.” “Yes. What is the secret?” “It helps sometimes to be a little deaf.” And I found that advice — it stood me in very good stead not only in a wonderful marriage that lasted well over half a century, but in every workplace I’ve served, dealing with my faculty colleagues when I was a law teacher, and even now with my colleagues on the Supreme Court. When an unkind word is said, a thoughtless word, best to tune out.

Then there was Von Neumann, the great mathemati-cian. We used to go for walks on Sunday. We'd walk in the canyons, and we'd often walk with Bethe, and Von Neumann, and Bacher. It was a great pleasure. And Von Neumann gave me an interesting idea; that you don't have to be responsible for the world that you're in.

[My father] used to say all the time, “You’re in a struggle, but if you get in a fight and lose your temper, you’ll lose the fight. So don’t get mad, get smart.”

Everything I did, and I think everything Martin Luther King did, was because we allowed our lives to be in tune with what we felt to be a divine purpose. And it didn’t matter whether we lived or died. It didn’t matter how much money we made, or what we accomplished.