In India I found a race of mortals living upon the Earth, but not adhering to it. Inhabiting cities, but not being fixed to them, possessing everything but possessed by nothing.(Apollonius Tyanaeus, Greek thinker and traveller, 1st century AD)
Eusebius of Caesarea in his Praeparatio Evangelica (Preparation for the Gospel, tr. E.H. Gifford 1903), Book 11, ch. 3 says:Now Aristoxenus the Musician says that this argument comes from the Indians: for a certain man of that nation fell in with Socrates at Athens, and presently asked him, what he was doing in philosophy: and when he said, that he was studying human life, the Indian laughed at him, and said that no one could comprehend things human, if he were ignorant of things divine.
Another quote is from Severus Sebokht about science in ancient India from “The Wonder That Was India, A Survey of the Culture of the Indian Sub-Continent Before the Coming of the Muslims”, by A.L. Basham, Reader in the History of India in the University of London, Sidgwick and Jackson, London, 1954, repr. 1961:
In 662 AD he wrote concerning the new numerals, which were moving West and were to become what we know as ‘Arabic’ numerals:
I will omit all discussion of the science of the Indians, … , of their subtle discoveries in astronomy, discoveries that are more ingenious than those of the Greeks and the Babylonians, and of their valuable methods of calculation which surpass description. I wish only to say that this computation is done by means of nine signs. If those who believe, because they speak Greek, that they have arrived at the limits of science, would read the Indian texts, they would be convinced, even if a little late in the day, that there are others who know something of value.
Vedic culture originates in the spiritual world and in prehistory it was spread practically all over this planet (and others). Later these locations were gradually cut off and developed, or rather degraded. Thus came divisions, conversions, fanaticism, suppression and even terrorism. Replacing religion with secularism as was done in the West is not a solution in a long run because such society without higher rules (dharma) quickly degrades and is opposed by hardline religions like Islam. It can be done by knowledge of origin of all spirituality – the One and Only God who revealed His laws to various people in various places, times and circumstances. This accounts for some differences but the ultimate goal of life in all religious traditions is the same – to reconnect to God by following His laws.