He's also well known in solid-state physics for the "Goodenough rules" [1] (more commonly called the Goodenough-Kanamori rules, but that has less of a ring to it).
What's really astounding is reading that, and looking at the dates. He first formulated this rule in 1955. And he's still working and making real contributions!
We really need to work on greatly extending human lifespans, if for no other reason than to keep people like this alive.
On the other hand, an engineer needs to know when to say "it's good enough" and release it. An invention in the hands of a perfectionist may never be released.
