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?
And a beautiful world we live in, when it is possible, and when many other such things are possible, and not only possible, but done-- done, see you!-- under that sky there, every day.
For it is the same whether you take it that the Earth is in motion or the Sky. For, in both the cases, it does not affect the Astronomical Science. It is just for the Physicist to see if it is possible to refute it.
It is sound statesmanship to add two battleships every time our neighbour adds one and two stories to our skyscrapers every time he piles a new one on top of his to threaten our light. There is no limit to this soundness but the sky.
Paris is a sum total. Paris is the ceiling of the human race. All this prodigious city is an epitome of dead and living manners and customs. He who sees Paris, seems to see all history through with the sky and constellations in the intervals.
The sky and the earth and the waters and the things that are in them, the fishes, and the birds and the trees are not evil. All these are good; it is evil men who make this evil world.
If we're going to prevent large parts of this Earth from becoming not only inhospitable but uninhabitable in our lifetimes, we're going to have to keep some fossil fuels in the ground rather than burn them and release more dangerous pollution into the sky.