^ Is the one that comes to mind? Or maybe
"[...] I'm getting too old for this sort of thing."
or
"An elegant weapon... for a more civilized age."
Actually now that I think about it, I really don't know what the parent was referring to.
It fits. With both Murdock and Naur, both of them were names I was familiar with but hadn't heard anything about for quite a while... until I heard they both died.