Men's ideas are the most direct emanations of their material state.
Medicine heals doubts as well as diseases.
Greek philosophy seems to have met with something with which a good tragedy is not supposed to meet, namely, a dull ending.
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.
The English have all the material requisites for the revolution. What they lack is the spirit of generalization and revolutionary ardour.
It is absolutely impossible to transcend the laws of nature. What can change in historically different circumstances is only the form in which these laws expose themselves.
History repeats itself, first as tragedy, second as farce.
Social progress can be measured by the social position of the female sex.
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.
Without doubt, machinery has greatly increased the number of well-to-do idlers.
Religion is the impotence of the human mind to deal with occurrences it cannot understand.
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.
Landlords, like all other men, love to reap where they never sowed.
If anything is certain, it is that I myself am not a Marxist.
Religion is the opium of the masses.
The writer may very well serve a movement of history as its mouthpiece, but he cannot of course create it.
Experience praises the most happy the one who made the most people happy.
The history of all previous societies has been the history of class struggles.
The production of too many useful things results in too many useless people.
Revolutions are the locomotives of history.