Intermarriage Quotes
They (the Hindus) differ from us in religion... There is very little disputing about theological topics among themselves; at the most they fight with words, but they will never stake their soul or body or their property on religious controversy. ... in all manners and usages they differ from us to such a degree as to frighten their children with us... and as to declare us to be devil's breed and our doings as the very opposite of all that is good and proper, ....they call all foreigners as mleccha, i.e. impure, and forbid having any connection with them, be it by intermarriage or any other kind of relationship, or by sitting, eating, and drinking with them, because thereby they think, they would be polluted... They are not allowed to receive anybody who does not belong to them, even if he wished it, or was inclined to their religion.
Al-Biruni
[T]he evidence from anthropology concurs with history in refuting the popular belief in a Jewish race descended from the biblical tribe. From the anthropologist's point of view, two groups of facts militate against this belief: the wide diversity of Jews with regard to physical characteristics, and their similarity to the Gentile population amidst whom they live. Both are reflected in the statistics about bodily height, cranial index, blood-groups, hair and eye colour, etc. Whichever of these anthropological criteria is taken as an indicator, it shows a greater similarity between Jews and their Gentile host-nation than between Jews living in different countries. ...The obvious biological explanation for both phenomena is miscegenation, which took different forms in different historical situations: intermarriage, large-scale proselytizing, rape as a constant (legalized or tolerated) accompaniment of war and pogrom.
Arthur Koestler