Professor Feynman's notebook

 Richard Feynman, the physicist, kept a notebook titled “Notebook of Things I Don’t Know About.”

I have thought of that notebook as I have struggled to learn about so many natural things, such as mushrooms, wasps and spiders, that I just don’t know about. I’m still looking at the Georgia Piedmont with the eyes of a newcomer.

I also thought of that notebook when we were cleaning out the refrigerator. The idea, so it seems to me, is to keep the things you use up front where you can see them and the things that you should be eating but don’t toward the back of the bottom shelves.

Feynman kept his questions — rather than the answers — handy.