There are, besides, eternal truths, such as Freedom, Justice, etc., that are common to all states of society. But Communism abolishes eternal truths,… - Karl Marx

In a higher phase of communist society, after the enslaving subordination of the individual to the division of labor, and therewith also the antithesis between mental and physical labor, has vanished; after labor has become not only a means of life but life's prime want; after the productive forces have also increased with the all-around development of the individual, and all the springs of co-operative wealth flow more abundantly — only then can the narrow horizon of bourgeois right be crossed in its entirety and society inscribe on its banners: From each according to his ability, to each according to his needs!

The less you eat, drink, buy books, go to the theatre or to balls, or to the pub, and the less you think, love, theorize, sing, paint, fence, etc., the more you will be able to save and the greater will become your treasure which neither moth nor rust will corrupt — your capital. The less you are, the less you express your life, the more you have, the greater is your alienated life and the greater is the saving of your alienated being.

The modern bourgeois society that has sprouted from the ruins of feudal society has not done away with class antagonisms. It has but established new classes, new conditions of oppression, new forms of struggle in place of the old ones.