We find that it (India) was visited for the purpose of acquiring knowledge by Pythagoras, Anaxarchus, Pyrrho, and others who afterwards became eminent philosophers in Greece.

Enfield, William The history of philosophy, from the earliest times o the beginning of the present century; drawn up from Brucker 5' Historia cntica philosophiae London: Printed for J. Johnson. 1791 Vol. I p. 65 as quoted in Londhe, S. (2008). A tribute to Hinduism: Thoughts and wisdom spanning continents and time about India and her culture