[morelisp]

I think such a man on his porch would have a wonderfully free and ready mind.

Ursula Le Guin's rendition is maybe more impactful to the modern reader:

    So the wise soul
    doesn't go, but knows;
    doesn't look, but sees;
    doesn't do, but gets it done.

[H8crilA]

Yes. Let me correct: it's not only about that grandpa.