Capital Brings Forth Living Offspring,

In Capitalist Society Spare Time Is Acquired For One Class By Converting The Whole Life-time Of The Masses Into Labour-time.

Once The Inner Connection Is Grasped, All Theoretical Belief In The Permanent Necessity Of Existing Conditions Collapses Before Their Collapse In Practice -- Letter To Ludwig Kugelmann (july 11, 1868)

Communism Deprives No Man Of The Ability To Appropriate The Fruits Of His Labour. The Only Thing It Deprives Him Of Is The Ability To Enslave Others By Means Of Such Appropriations.

Constant Labor Of One Uniform Kind Destroys The Intensity And Flow Of A Man's Animal Spirits, Which Find Recreation And Delight In Mere Change Of Activity.

The Economic Concept Of Value Does Not Occur In Antiquity .