[Classics] Foundations of Christianity Early Christianity arose at a time of upheaval and change associated with the crisis of slave society. The rise of Christianity is one of the most extraordinary phenomena in history. Kautsky's Foundations of Christianity deserves a far wider audience than it has had. The main conclusions have been strikingly confirmed by the latest discoveries of archaeology and in particular the Dead Sea Scrolls. As such, Kautsky’s book remains a masterpiece of the method of historical materialism.
[Classics] Socialism and Religion "Those who toil are taught by religion to be submissive and patient while here on earth, and to take comfort in the hope of a heavenly reward. But those who live by the labour of others are taught by religion to practise charity while on earth, thus offering them a very cheap way of justifying their entire existence as exploiters and selling them at a moderate price tickets to well-being in heaven." (Lenin)
[Classics] Socialism and The Churches "Here is the answer to all the attacks of the clergy: the Social-Democracy in no way fights against religious beliefs. On the contrary, it demands complete freedom of conscience for every individual and the widest possible toleration for every faith and every opinion. But, from the moment when the priests use the pulpit as a means of political struggle against the working classes, the workers must fight against the enemies of their rights and their liberation." (Luxemburg)
[Classics] Ludwig Feuerbach and the End of Classical German Philosophy "A short, coherent account of our relation to the Hegelian philosophy, of how we proceeded, as well as of how we separated, from it, appeared to me to be required more and more. Equally, a full acknowledgement of the influence which Feuerbach, more than any other post-Hegelian philosopher, had upon us during our period of storm and stress, appeared to me to be an undischarged debt of honor. I therefore willingly seized the opportunity when the editors of Neue Zeit asked me for a critical review of Starcke’s book on Feuerbach." (Engels)
[Classics] Critique of Hegel’s Philosophy of Right Karl Marx understood very well the role of religion. He is often quoted as saying that religion is the “opium of the people”. But he said a lot more than that, and it was in this work that he shows a deep understanding of why people are religious. He explains that, to ask them to give up on their religious illusions, this means removing the conditions that require that illusion.