Enjoying your work after seventy: How much responsibility do you want?

I remember a very, very experienced professional who’d had some big corporate jobs and as he got older and more elderly, I would meet with him regularly.  He told me that now, as he moved into his mid-seventies, all he believe he should do was watch and pray.  To acknowledge this, he had a lapel badge with a heron.  This is a bird that stands very still watching and then goes in and makes a brief intervention to catch a fish.