Marx and Engels are a great source of quotes which came true.

Machines were, it may be said, the weapon employed by the capitalist to quell the revolt of specialized labor. - Karl Marx (1847)

Under private property … Each tries to establish over the other an alien power, so as thereby to find satisfaction of his own selfish need. The increase in the quantity of objects is therefore accompanied by an extension of the realm of the alien powers to which man is subjected, and every new product represents a new potentiality of mutual swindling and mutual plundering. - Karl Marx (1844)

Political economy came into being as a natural result of the expansion of trade, and with its appearance elementary, unscientific huckstering was replaced by a developed system of licensed fraud, an entire science of enrichment. - Friedrich Engels (1844)