Birthdays have never meant much to me. In fact, I like prime numbers so much that I adopted them as my age, regardless of how old I really was. Then suddenly my 70th loomed and for the first time, a birthday seemed significant. I called up my friend Beth, who was approaching 100. She suggested a walk, and for the next three years we walked every Wednesday, talking about art, friendship, love, aging, the passions that still keep both of us going. Join us for a literary stroll in my latest book, Walking With Beth. And read Beth’s memoir, My Journey to One Hundred. You’ll find snippets from my other works-in-progress in Passages.