Anyone who knows anything of history knows that great social changes are impossible without feminine upheaval. Social progress can be measured exactly by the social position of the fair sex, the ugly ones included. – Karl Marx
The writer must earn money in order to be able to live and to write, but he must by no means live and write for the purpose of making money. – Karl Marx
The development of civilization and industry in general has always shown itself so active in the destruction of forests that everything that has been done for their conservation and production is completely insignificant in comparison. – Karl Marx
Natural science will in time incorporate into itself the science of man, just as the science of man will incorporate into itself natural science: there will be one science. – Karl Marx