“It is not every struggle against imperialism that we should support. We will not support a struggle of the reactionary classes against imperialism; we will not support an uprising of the reactionary classes against imperialism & capitalism.”

“Let us not, however, flatter ourselves over much on account of our human victories over nature. For each such victory nature takes its revenge on us. Each victory, it is true, in the first place brings about the results we expected, but in the second and third placed it has quite different, unforseen effects which only too often cancel out the first.”

“At the entrance to science, as at the entrance to hell, the demand must be made:

“It is true that labor produces for the rich wonderful things – but for the worker it produces privation. It produces palaces – but for the worker, hovels. It produces beauty – but for the worker, deformity. It replaces labor by machines, but it throws one section of the workers back into barbarous types of labor and it turns the other section into a machine.”

“Throughout the civilised world the teachings of Marx evoke the utmost hostility and hatred of all bourgeois science (both official and liberal), which regards Marxism as a kind of “pernicious sect”. And no other attitude is to be expected, for there can be no “impartial” social science in a society based on class struggle. In one way or another, all official and liberal science defends wage-slavery, whereas Marxism has declared relentless war on that slavery. To expect science to be impartial in a wage-slave society is as foolishly naïve as to expect impartiality from manufacturers on the question of whether workers’ wages ought not to be increased by decreasing the profits of capital.”

“There is only one way of smashing the resistance of those classes, and that is to find, in the very society which surrounds us, the forces which can—and, owing to their social position, must—constitute the power capable of sweeping away the old and creating the new, and to enlighten and organise those forces for the struggle.”

“When feudalism was overthrown and “free” capitalist society appeared in the world, it at once became apparent that this freedom meant a new system of oppression and exploitation of the working people.”

“Capitalism has triumphed all over the world, but this triumph is only the prelude to the triumph of labour over capital.”

“People always have been the foolish victims of deception and self-deception in politics, and they always will be until they have learnt to seek out the interests of some class or other behind all moral, religious, political and social phrases, declarations and promises.”

“Capital, created by the labour of the worker, crushes the worker, ruining small proprietors and creating an army of unemployed.”

“The Marxist doctrine is omnipotent because it is true. It is comprehensive and harmonious, and provides men with an integral world outlook irreconcilable with any form of superstition, reaction, or defence of bourgeois oppression. It is the legitimate successor to the best that man produced in the nineteenth century, as represented by German philosophy, English political economy and French socialism.”

“Revolutionary Social-Democracy has always included the struggle for reforms as part of its activities. But it utilises “economic” agitation for the purpose of presenting to the government, not only demands for all sorts of measures, but also (and primarily) the demand that it cease to be an autocratic government.”

“But in the measure that history moves forward, and with it the struggle of the proletariat assumes clearer outlines, they no longer need to seek science in their minds; they have only to take note of what is happening before their eyes and to become its mouthpiece. So long as they look for science and merely make systems, so long as they are at the beginning of the struggle, they see in poverty nothing but poverty, without seeing in it the revolutionary, subversive side, which will overthrow the old society. From this moment, science, which is a product of the historical movement, has associated itself consciously with it, has ceased to be doctrinaire and has become revolutionary.”

“Machines were, it may be said, the weapon employed by the capitalist to quell the revolt of specialized labor.”

“The philosophers have only interpreted the world, in various ways; the point is to change it.”