The important part of Marxism was its demand for active, constant, practical, class-war.

Marxism is the opium of the intellectuals.

At the same time, of course, Marxism arose - Rosa Luxembourg, Leninism, anarchism - and art became political.

Marxism is essentially a product of the bourgeois mind.

Beginning with adolescence, my political formation was oriented in the ideological direction of Marxism. It was natural, being that my thinking was influenced by an atmosphere of active critical resistance. That was the way it was during all of the dictatorship and up to the Revolution of 1974.

As the egalitarianism of Marxism is attractive to many, socialism could have attracted many followers in America, anyway. But there is no doubt that it could not possibly have affected us so widely and so deeply as it has, had it not been heavily financed.

There's something about Marxism that brings out warts; the only kind of growth this economic system encourages.

Of course, Marxism is an example of what Carl Popper would have called a 'World Three' structure, in that it's got immense power as an idea, but you couldn't actually hold up anything in the world and say: 'this is Marxism'.

Marxism is always open, always critical, always self-critical.

For us, Marxism is always open because there are always new xperiences, there are always new facts, including facts about the past, which have to be incorporated in the corpus of scientific socialism.

Marxism is like a classical building that followed the Renaissance; beautiful in its way, but incapable of growth.

The classics of Marxism, while fully appreciating the significance of the Darwinian theory, pointed out the errors of which Darwin was guilty. Darwin's theory, though unquestionably materialist in its main features, is not free from some serious errors.

Darwin himself, in his day, was unable to fight free of the theoretical errors of which he was guilty. It was the classics of Marxism that revealed those errors and pointed them out.

What guides Marxism, then, is a different model of society, and a different conception of the function of the knowledge that can be produced by society and acquired from it.

Marxism is a revolutionary worldview that must always struggle for new revelations.