Atmosphere. It bypasses cerebral knowledge and speaks instead to different levels within Man.
"...long ago in the quiet of the world, when there was less noise and more green..."
It would be a ridiculous and unwarranted presumption on our part if we imagined that we were more energetic or more intelligent than the men of the past- our material knowledge has increased, but not our intelligence. This means that we are just as bigoted in regard to new ideas, and just as impervious to …
The great problems of humanity were never yet solved by general laws, but only through regeneration of the attitudes of individuals
... and they shall reap the whirlwind.