of the Quill:  ..."no country for old men"

I've been reading from "A Poem A Day" by Karen McCosker; bought it years ago but this year, an unofficial resolution I'm trying to stick to is to read through it as daily as possible as part of my year.  I had seen and enjoyed "No Country for Old Men", but had never bothered to look up the title before.  Well, evidently it is from Sailing to Byzantium by William Butler Yeats.  Its a good poem for an introspective moment.