"Read theory."
We say this all the time. It's basically an expression, isn't it? It can be advise, bragging, scorn, mockery. It's all become a bit ephemeral.
That's not to say that people shouldn't read theory. Without revolutionary theory, there can be no revolutionary movement. Even so, isn't it a bit silly to suggest, even implicitly, that being a Marxist or communist boils down to a familiarity with the source material? If that's not book worship, I don't know what is.
I understand that this is, on some level, an accusation. I am suggesting that many of our communities are caught up in a somewhat liberal, idealist mindset. We all have an ideology, a set of opinions about the world which we express and propagate at the expense of our competitors. Can we seriously deny this is what we are doing?
If Marxism-Leninism is a science, there must be some technical aspect. What are we supposed to do in the world? How do we do it? And how do we know if it's working?
There is a dialectic between theory (or head knowledge) and practice. To be a Marxist is to do both things, working through that dialectic to evolve yourself as a practicianer. Additionally, to be a Marxist in practice necessitates interaction with an organized group of other Marxists. This interaction will challenge you to resolve conflicts between ideas, theories, strategies and so forth and develop a practical version of democratic centralism for your organization.
Those who think that Marxism is just learning theory aren't actually practicing Marxism. They become purists and commit the error of dogmatism. Many Trotskyists fall into this camp (I won't say all Trotskyists, but I'm still looking for counter-examples). It's why a Trotskyists probably knows Marxist theory better than I do but is also the most useless leftist on the planet (and can often even become useful to the bourgeoisie!).
If you only ever read theory and do not put it into practice, you are simply doing so for some personal reasons, like to feel smarter than others because you have an insecurity. This is not just useless but dangerous because people like this can sound really smart and like they know what they're talking about for new leftists. But because they offer no real solution to the material problems of those around them nor any practical avenues for the proletariat to direct their anger and pain from capitalism towards revolutionary action, it drains the energy away from more serious praxis.
Praxis is the hard part. It's why many don't do it. But it's what actually makes any of this make sense.
"The philosophers have hitherto only interpreted the world in various ways. The point, however, is to change it." — Karl Marx