Well, I’m writing a book about him, about Leonard and friendship. And he might have been my dearest friend, and we had a lot of – I guess the word “fun” applies to it – in living our lives alongside each other. His background is not unlike mine. His marital life was very much like mine. He had children. I had children. And we had many of the same problems and advantages. And so we had a lot in common. And we made each other laugh a lot. And that’s what my book is going to be about: about friendship.
— William Shatner on Leonard Nimoy and his book