Page "Historical materialism" Paragraph 39

One of the aims of Engels's polemic Herr Eugen Dühring's Revolution in Science ( written with Marx's approval ) was to ridicule the easy " world schematism " of philosophers, who invented the latest wisdom from behind their writing desks.

Towards the end of his life, in 1877, Marx wrote a letter to the editor of the Russian paper Otetchestvennye Zapisky, which significantly contained the following disclaimer: