These three factors—the influence of the French Revolution, the rational economic argument of civil servants, and the greed of the nobility, determin… - Eric Hobsbawm

Having established the limits beyond which partisanship ceases to be scientifically legitimate, let me argue the case in favour of legitimate partisanship, both from the point of view of the scientific or scholarly discipline and from that of the cause to which the scholar feels committed.

Marx's ideas became the doctrines inspiring the labour and socialist movements of most of Europe. Mainly via Lenin and the Russian Revolution they became the quintessential international doctrine of twentieth-century social revolution, equally welcomes as such from China to Peru. Through the triumph of parties identified with these doctrines, versions of these ideas became the official ideology of the states in which, at their peak, something like a third of the human race lived, not to mention political movements of varying size an importance in the rest of the world. The only individually identifiable thinkers who have achieved comparable status are the founders of the great religions in the past, and with the possible exception of Muhammad none have triumphed on a comparable scale with such rapidity. No secular thinker can be named beside him in this respect.

Words are witnesses which often speak louder than documents. Let us consider a few English words, which were invented or gained their modern meanings, substantially in the period of sixty years with which this volume deals. They are such words as 'industry', 'industrialist', 'factory,' middle class,' 'working class,' and 'socialism.' They include 'aristocracy,' as well as 'railway,' 'liberal' and 'conservative' as political terms, 'nationality,' 'scientist,' and 'engineer,' 'proletariat,' and (economic) 'crisis'.