Quotes by Karl Marx

The product of mental labor – science – always stands far below its value, because the labor-time necessary to reproduce it has no relation at all to the labor-time required for its original production.

Religion is the sigh of the oppressed creature, the heart of a heartless world, and the soul of soulless conditions. It is the opium of the people.

The first requisite for the happiness of the people is the abolition of religion.

Religion is the opium of the masses.

Religion is the impotence of the human mind to deal with occurrences it cannot understand.

The meaning of peace is the absence of opposition to socialism.

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.

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.

Capital is money, capital is commodities. By virtue of it being value, it has acquired the occult ability to add value to itself. It brings forth living offspring, or, at the least, lays golden eggs.

Men’s ideas are the most direct emanations of their material state.