For I am of the opinion... that the reconquest of the German speaking left bank of the Rhine is a matter of national honour, and that the Germanisati… - Friedrich Engels

There is no country in Europe which does not have in some corner or other one or several ruined fragments of peoples (Völkerruinen), the remnant of a former population that was suppressed and held in bondage by the nation which later became the main vehicle of historical development. These relics of a nation mercilessly trampled under foot in the course of history, as Hegel says, these residual fragments of peoples () always become fanatical s of counter-revolution and remain so until their complete extirpation or loss of their national character, just as their whole existence in general is itself a protest against a great historical revolution.

Ireland still remains the Holy Isle whose aspirations must on no account be mixed with the profane class-struggles of the rest of the sinful world ... the Irish peasant must not on any account know that the Socialist workers are his sole allies in Europe.

The proletariat is that class in society which lives entirely from the sale of its labor and does not draw profit from any kind of capital; whose weal and woe, whose life and death, whose sole existence depends on the demand for labor – hence, on the changing state of business, on the vagaries of unbridled competition.