Torah in the grave?

So the rabbi disagrees with the G.M.?

1. This is a legend and there is no reason to disagree.
2. This is the opinion of the R”ash. Some disagree with it. In particular, the Rambam and the R”a (Response 9) see that they dealt with this. It is possible that in their opinion it is permissible to engage in it, but it is not Torah (in Gebra). But specifically the Rambam definitely sees it as Torah. See the Foundations of the Torah and the M’n. A great matter is physics (the act of Genesis) and metaphysics (the act of the Merkava).
3. I mentioned in my words that perhaps the R”ash was referring specifically to Greek wisdom that was forbidden (because of an act that occurred) and not to all wisdom.

4. And even in Greek wisdom, opinions were initially divided about what was forbidden: philosophy or literature and poetry (the writings of Homer).

What is the definition of a legend?

I remembered once seeing an article by Rabbi Lichtenstein where he explained that Greek wisdom is something with the hand and has nothing to do with the wisdom we know [if I'm not mistaken]

Which is not Halacha.
As mentioned, there is disagreement among the rishonim on this. Rav Hai Gaon, for example, says that these are the books of Homer and not philosophy.

It seems to me that what Rabbi Lichtenstein wrote stems from the words of the Rabbi that Greek wisdom is riddles and clues that the Greek sages would make using hand movements.

Rabbi Akiva
Perhaps he is referring to the wisdom of demagogy or rhetoric

“Maybe he means the wisdom of demagogy” the Haredim invented that 😁😁