"But the Marxists think that religion is an evil, because it is anti-reason ; while reason is a good in itself, which moreover emancipates man by equipping him with the intellectual as well as technological means to determine his own destiny. Now this notion of reason and religion stems from a specifically European situation, that conditioned Marx' thought about religion. The fact that Indian Marxists have simply transposed Marx' limited view to the Indian situation is just another example of how dogmatic Marxists generally are. It also shows how utterly ignorant the Indian Leftist (and generally secularist) intelligentsia is of India's home-grown religious culture."
January 1, 1970
https://en.wikiquote.org/wiki/Marxism_and_religion