There Is Only One Effective Antidote For

The Materialist Doctrine That Men Are Products Of Circumstances And Upbringing, And That, Therefore, Changed Men Are Products Of Other Circumstances And Changed Upbrinding, Forgets That It Is Men That Change Circumstances And That The Educator Himself Needs Educating.

...it Is All The More Clear What We Have To Accomplish At Present: I Am Referring To Ruthless Criticism Of All That Exists, Ruthless Both In The Sense Of Not Being Afraid Of The Results It Arrives At And In The Sense Of Being Just As Little Afraid Of Conflict With The Powers That Be.

Darwin's Book Is Very Important And Serves Me As A Basis In Natural Science For The Class Struggle In History. One Has To Put Up With The Crude English Method Of Development, Of Course. Despite All Deficiencies Not Only Is The Death-blow Dealt Here For The First Time To 'teleology' In The Natural Sciences, But Their Rational Meaning Is Empirically Explained.

The Unity Is Brought About By Force .

In This Sense, The Theory Of The Communists May Be Summed Up In The Single Sentence: Abolition Of Private Property. - Manifesto Of The Communist Party