The abolition of religion as ...

The abolition of religion as the illusory happiness of the people is the demand for their real happiness. To call on them to give up their illusions about their condition is to call on them to give up a condition that requires illusions. The criticism of religion is, therefore, in embryo, the criticism of that vale of tears of which religion is the halo.
The abolition of religion as the illusory happiness of the people is the demand for their real happiness. To call on them to give up their illusions about their condition is to call on them to give up a condition that requires illusions. The criticism of religion is, therefore, in embryo, the criticism of that vale of tears of which religion is the halo.
 Karl Marx

Quotes from the same author

Under private property, each tries to establish over the other an alien power, so as thereby to find satisfaction of his own selfish need. The increase in the quantity of objects is therefore accompanied by an extension of the realm of the alien powers to which man is subjected, and every new product represents a new potentiality of mutual swindling and mutual plundering.
 See image
 Karl Marx
The wealthy man is the man whois much, not the one who has much
 See image
 Karl Marx
The ruling ideas of each age have ever been the ideas of its ruling class.
 See image
 Karl Marx
Labour is ... not the only source of material wealth, i.e, of the use-values it produces. As William Petty says, Labour is the father of material wealth, the earth is its mother.
 See image
 Karl Marx
The social principles of Christianity preach cowardice, self-contempt, abasement, submission, humility, in a word all the qualities of the canaille
 See image
 Karl Marx