You said: “…please give one example of ancient wisdom that is superior to ours with our modern knowledge and understanding.”
You introduced here the qualification “superior to ours” . I did not read that phrase in the introduction. Does this reflect then your point of view?
A few remarks:
1. Wisdom, ancient or not, is always superior to knowledge, modern or not.
2. You seem to be mixing up wisdom and knowledge here.
3. I doubt it very much if your question is “honest” in the sense that you really want to know and explore:
By my knowledge you already tried to study one example, but you gave up, because, as you said, “it was not in “plain English” ”:
I'm speaking of "The Temple of Man" by Schwaller de Lubicz.
"Each detail of masonry and symbolic art expresses an element of the Egyptians' comprehensive knowledge of man's physical and spiritual anatomy."
If, however, I take your question at “face value”, then this said knowledge is superior to ours because it is comprehensive whereas ours is fragmented and shattered.
It presents an integration of art and science in a way that our present civilization is not able to do at the moment.
And it is all laid down in stone and architecture for everyone to see and to check out!
So now you have at least one example you asked for.