The Socialist view of the evolution of society is that the central fact of history is this struggle of classes for political and economic power. The governing class of any society or period, Marx taught, consists of the economic exploiters, the governed class of the economically exploited. The governing class becomes more and more firmly established in power, until it begins to stagnate, but the machinery of production continues to evolve, and falls gradually into the hands of some exploited element which is able to use this economic advantage as a means for overthrowing its rulers. Marx felt that with the vast revolution in society marked by modern science and modern machinery, the time is fast approaching when the exploited classes of to-day will be able to overthrow the present ruling class, the capitalists, and at the same time establish an industrial democracy, where all class oppression will be brought to an end. However his predictions may turn out in the future, Marx's view of the past is rapidly gaining ground and is possibly accepted by the majority of those most competent to speak on these questions to-day, including many leading economists and sociologists and prominent figures in practical political life. Winston Churchill, for example, says that "the differences between class and class have been even aggravated in the passage of years," that while "the richer classes [are] ever growing in wealth and in numbers, and ever declining in responsibility, the very poor remain plunged or plunging even deeper into helpless, hopeless misery." This being the case, he predicts "a savage strife between class and class," unless the most radical measures are taken to check the tendency. Nor are his statements mere rhetoric, for he shows statistically "that the increase of income assessable to income tax is at the very least more than ten times greater than the increase which has taken place in the same period in the wages of those trades which come within the Board of Trade returns."[208] In other words, the income of the well-to-do classes (which increased nearly half a billion pounds, that is, almost doubled, in ten years) is growing ten times more rapidly than that even of the organized and better paid workmen, who alone are considered in the Board of Trade returns. Here is a situation which is world-wide. The position of the working class, or certain parts of it, may be improving; the income of the employing and capitalist class is certainly increasing _many fold_ more rapidly. Here is the financial expression of the growing _divergence_ of classes which Marx had in mind, a divergence that we have no reason whatever for supposing will be checked, as Mr. Churchill suggests, even by his most "Socialistic" reforms, short of surrendering the political and economic power to those who suffer from this condition.