The Tao belongs neither to knowing nor not knowing. Knowing is false understanding; not knowing is blind ignorance. If you really understand the Tao beyond doubt, it's like the empty sky. Why drag in right and wrong?
I lingered round them, under that benign sky; watched the moths fluttering among the heath and hare-bells; listened to the soft wind breathing through the grass; and wondered how anyone could ever imagine unquiet slumbers for the sleepers in that quiet earth.
You can't run forever. There's only so much pavement that the road makers lay down. After a while, the highway quits going north and it just turns into sky. And you can't go anywhere in the sky unless you have a plane or some kind of rocket.