There is far less to-and-fro movement between the different groups than happened under capitalism or even in the pre-industrial age. Between the two branches of the Party there is a certain amount of interchange, but only so much as will ensure that weaklings are excluded from the Inner Party and that ambitious members of the Outer Party are made harmless by allowing them to rise. Proletarians, in practice, are not allowed to graduate into the Party. The most gifted among them, who might possibly become nuclei of discontent, are simply marked down by the Thought Police and eliminated. But this state of affairs is not necessarily permanent, nor is it a matter of principle. The Party is not a class in the old sense of the word. It does not aim at transmitting power to its own children, as such; and if there were no other way of keeping the ablest people at the top, it would be perfectly prepared to recruit an entire new generation from the ranks of the proletariat. In the crucial years, the fact that the Party was not a hereditary body did a great deal to neutralize opposition. The older kind of Socialist, who had been trained to fight against something called ‘class privilege’ assumed that what is not hereditary cannot be permanent. He did not see that the continuity of an oligarchy need not be physical, nor did he pause to reflect that hereditary aristocracies have always been short- lived, whereas adoptive organizations such as the Catholic Church have sometimes lasted for hundreds or thousands of years. The essence of oligarchical rule is not fatherto-son inheritance, but the persistence of a certain world-view and a certain way of life, imposed by the dead upon the living. A ruling group is a ruling group so long as it can nominate its successors. The Party is not concerned with perpetuating its blood but with perpetuating itself. WHO wields power is not important, provided that the hierarchical structure remains always the same.