The fiction that a man of obviously different type and culture and race is the same as ourselves, may be practical for purposes of law and government, but cannot be maintained in general opinion. A conspiracy or illusion attempting, for instance, to establish the Esquimaux in Greenland as indistinguishable from the Danish officials of the Settlement, would fail through ridicule. Equally ridiculous would be the pretence that because they were both subjects of the same Crown an Englishman in the Civil Service of India was exactly the same sort of person as a Sikh soldier. But with the Jews you have the startling truth that, while the fundamental difference goes on the whole time and is perhaps deeper than any other of the differences separating mankind into groups; while he is, within, and through all his ultimate character, above all things a Jew; yet in the superficial and most immediately apparent things he is clothed in the very habit of whatever society he for the moment inhabits.
I say that this might seem to many the last and strongest argument in favour of the old-fashioned Liberal policy, but I repeat that it is a dangerous argument, for it cuts both ways. If a food which disagrees with you looks exactly like another kind of food which suits you, you might use the likeness as an argument for eating either sort of food indifferently. You might say: "It is silly to try to distinguish; one must admit, on looking at them, that they are the same thing"; but it would turn out after dinner a very bad practical policy.
There is indeed one last argument which to me, personally, and I suppose to most of my readers, is stronger than all the rest, for it is the argument from morals.