One day you will do things for me that you hate. That is what it means to be family.

I flipped back through the pad of paper while I thought about what Stephen Hawking would do next.

As for the bracelet Mom wore to the funeral, what I did was I converted Dad’s last voice message into Morse code, and I used sky-blue beads for silence, maroon beads for breaks between letters, violet beads for breaks between words, and long and short pieces of string between the beads for long and short beeps, which are actually called blips, I think, or something. Dad would have known.

In the past seven years of love-making he had heard the words "I love you" so many times: from the mouths of widows and children, from prostitutes, family friends, travelers, and adulterous wives. Women said "I love you" without his ever speaking. "The more you love someone," he came to think, "the harder it is to tell them." It surprised him that strangers didn't stop each other on the street to say "I love you".

I'm a novelist, I'm not an activist. I'm not a non-fiction writer, I'm not a journalist. I'm not a foodie, I'm not even really an animal person, or an environmentalist. I did the best I could with this, but it's not who I am.

September 11 had such a strong visual component, the most visually documented event in human history. Nothing's ever been seen by as many people as that was. Our experiences of the day, our memories of the day are just so tied up in images of buildings falling and bodies falling.

It is my great hope that our paths, however long and winding, will cross again.