Sheri S. Tepper said this quote

For it would be only for a time. Until what he knew and thought became no longer relevant or necessary and was forgotten. But that was the same with all of us. We were only what we were for a time, at that time. Then our own silver began to mix with the tin of our future to change us. I knew this to be so and grieved for Windlow while I grieved for me. In time I would not be this Peter, even as I now was not the peter of two years ago.... Yet that Peter was not lost.