An increase in the productivity of labour means nothing more than that the same capital creates the same value with less labour, or that less labour creates the same product with more capital.

As a beast of toil an ox is fixed capital. If he is eaten, he no longer functions as an instrument of labour, nor as fixed capital either.

The circulation of capital realizes value , while living labour creates value.

In its struggle for power the proletariat has no other weapon but organisation. Disunited by the rule of anarchic competition in the bourgeois world, ground down by forced labour for capital, constantly thrust back to the 'lower depths' of utter destitution, savagery, and degeneration, the proletariat can, and inevitably will become an invincible force only through its ideological unification on the principles of Marxism being reinforced by the material unity of organisation, which welds millions of toilers into an army of the working class.

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

In proportion as capital accumulates, the lot of the laborer, be his payment high or low, must grow worse.