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. – Karl Marx
Society does not consist of individuals but expresses the sum of interrelations, the relations within which these individuals stand. – Karl Marx
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. – Karl Marx
Capitalist production, therefore, develops technology, and the combining together of various processes into a social whole, only by sapping the original sources of all wealth – the soil and the labourer. – Karl Marx