The bourgeoisie incites the workers of one nation against those of another in the endeavor to keep them disunited. Class-conscious workers, realising that the break-down of all the national barriers by capitalism is inevitable and progressive, are trying to help to enlighten and organise their fellow-workers from the backward countries.

"Capitalism and Workers' Immigration", in Za Pravdu No. 22 (29 October 1913); Collected Works, Vol. 24.