The following piece of writing is an off-print of part of my work 
Herr Eugen Dühring’s Revolution in Science, and contains three 
chapters that bear the title “The Force Theory”.*!? They have 
already appeared separately in Russian translation, namely as the 
appendix to the Russian edition of my Socialism: Utopian and 
Scientific? Only the most necessary changes and addenda have 
been made in the present edition. But an off-print requires a 
special addendum. 

If I publish in German a pamphlet on “the role of force in 
history”, the German reader has every right to expect me not to 
conceal my views on the very important part played by force 
precisely in his own history over the past thirty years. For this 
reason I have added a fourth section, which naturally covers only 
the main points. Perhaps I shall be granted the opportunity one 
day to deal with the subject in more detail. 

1887 and March 1888 script 
No. 22, 1895 time 

a @. DOureanc, Paseumie nayunazo coyiaru3ma, 7KeHeBa, 1884.— Ed.