Please don't attribute quotes to me that I did not make.
Not attributing it to you, just saying it was in your post. I'm not attacking you or anything, just talking on the subject
Again, this is just your opinion, right? Or are you stating it as a fact and if so, by what authority?
I'm stating it as a fact and giving my opinions. The "authority" is the great library of books that the 'Hermeticists' of the 14th-16th century wrote. Then compare that to the writings of the 19th-20th 'Hermeticists'. Yes, they are both working with in same 'ancient mystery tradition' and playing with many of the same ideas. Yes, they are both quite often 'neo-platonic'. But the way they write and express their ideas; their theories and practices, were very different. They are coming from different places and different times. Italian Renaissance, Hellenistic, esoteric energy is the 'older tradition'; Spiritualism, Theosophy, psychology, occultism is the 'newer tradition'.
I could go into much more detail, about the history and ideas and such if you want, but I will leave that out here.
I don't know what time you are referring to. The Jesuits were in India from 1542 onward, exactly 100 years before Newton's birth. The Rig-Veda was the first book they conned a Brahmin into dictating. The translation was shipped back to Europe immediately after.
I'm sure it was. But during this period in Europe was mainly working in Greek, Latin, Vernacular, or Arabic/semitic (mostly by way of Greek). It's not that they didn't have or want Sanskrit texts. But India was still very far away in those days and the Indian world hadn't gone West, the Muslim world had gone East, in similar fashion as Great Alexander of old. Otherwise, whatever Indian/Vedic astronomy they could get the Europeans were into it. One can find references to Indian sources in cartography, navigation, astronomy, etc but most of this is by way of Arabic translations of Indian works. It is not really until late 17th-19th century that Indian/Sankrit texts become more common. But even then and now they are really not that common.
In terms of Newton, I am just responding to the line in the quote you posted. He left a bunch of writings and correspondences. He talks a lot about and has no hesitancy to reference a great many foreign and ancient sources he is studying or drawing upon (Greeks, Romans, Arabs, Babylonians, Egyptians, Phoenicians, Chaldeans, etc). I see no reason why he would be hiding in particular Indian ones. It's not that Newton did something, therefor they didn't; it's not about who did what first. I'm just saying it wasn't some nefarious conspiracy to "steal" these ideas.
"Twenty-four centuries before Isaac Newton, the Hindu Rig-Veda asserted that gravitation held the universe together. The Sanskrit speaking Aryans subscribed to the idea of a spherical earth in an era when the Greeks believed in a flat one. The Indians of the fifth century A.D. calculated the age of the earth as 4.3 billion years; scientists in 19th century England were convinced it was 100 million years.” (Dick Teresi, Lost Discoveries: The Ancient Roots of Modern Science.)
I'm haven't read that Teresi book, but at a cursory glance he seems to have an agenda pushing the old "West/Europe stole everything" narrative that has become common.
The Rig-Veda asserts no such thing. This is what I'm saying about allegory and twisting words post-facto to mean whatever one might want.
For some time now sensational claims of the Vedas containing advanced science or technology have been thrown around, but it is always the same story. Some poetic line is conflated to mean X, Y, or Z. Nothing new, people have been doing with the Bible, Quran, etc. religious texts for a long time now. The supposed line about "gravity" from the Vedas is
Rig Veda 1.164.13, which in translation reads:
13. Upon this five-spoked wheel revolving ever all living creatures rest and are dependent.
Its axle, heavy-laden, is not heated: the nave from ancient time remains unbroken.
This is mythological poetry, to get this to mean gravity you have to make some rather fanciful mental leaps. It is the same case with the other bold claims about the Vedas. Poetic lines from a collection of Hymns twisted to fit any narrative. Which just ends up doing Indian history and achievement a great disservice. Indian has long been a great place of learning and they have made many great advances in math, astronomy, sciences, etc. The thing is, they left many books and writings on these subjects down through the ages. But instead of reading or talking about their actual thoughts and ideas, people find it more "convenient" to bring out the Vedas, because they are ancient or spiritual, or whatever, and find the words that "fit" what that want to be the "truth".
Also Newton didn't "invent" or "discover" gravity. Such an idea had long been known. His work was the "law of gravitation", where he attempted to find the acute laws of motion behind the centripetal force of gravity.
Perhaps you could quote the ancient Greek equivalents of Rahu and Ketu given your opinion that Vedic Astronomy was "largely derived from" the Greeks.
I'm not sure what you mean? If you are asking if the Greeks had attributed celestial beings with astrological powers to causing eclipses and the lunar nodes, then no, that doesn't seem to be the case. But they certainly knew about eclipses and lunar nodes, and had many thoughts on them.
The subject of Ancient Greek astronomy, and its relation to India, etc is a long and deep subject. I can go into in detail, but I will only be brief here. I'm not implying India had no astronomy until the Greeks. The basic claim of "Greek influence" in most easily understood with Alexander, who conquered into India, bringing Hellenistic culture with him. Ancient Greek astronomy was considered as a discipline of math and is openly derived from many Babylonian, Egyptian, Chaldean, Persian sources. Before Alexander the Achaemenid Empire of Persia had conquered into India as well, bringing with them their culture. Certainly the influence of Babylonian ideas goes in both directions. Names like Eudoxus, Archytas, Theodosius of Bithynia, Apollonius of Perga, Hipparchus, etc. bring ideas into astronomy that would seem to have much more significance than Rahu and Ketu...
The "golden age" of Classic Vedic astronomy wasn't really until the 4th-6th centuries AD, with Aryabhata, Brahmagupta, etc. At this point they are openly talking of their Greek (and Roman) sources, like the
Romaka Siddhanta (Doctrine of the Romans). Really the most interesting thing is that don't seem to work with Ptolemy, but older Greek/Roman stuff. There's plenty of Indian works on Astronomy, one can rather easily find out their thoughts and ideas. Otherwise, like I said, this tale is a long one.