Philosopher's path (Tetsugaku no michi)

Of course, I'd visualized a very pristine, secluded path. In fact, it goes through a residential area, and there are a lot of shops on the northern end, including one selling Native American tchotchkes from Sedona. I was surprised to see narcissus blooming (it seemed so early). I have no idea what the sign above with the rat & mouse is about.