On May 5th, 1818, Karl Marx, hero of the international proletatiat, was born. His revolution of Socialist theory reverberates throughout the world carries on to this day, in increasing magnitude. Every passing day, he is vindicated. His analysis of Capitalism, development of the theory of Scientific Socialism, and advancements on dialectics to become Dialectical Materialism, have all played a key role in the past century, and have remained ever-more relevant throughout.
He didn't always rock his famous beard, when he was younger he was clean shaven!
Some significant works:
Economic & Philosophic Manuscripts of 1844
The Eighteenth Brumaire of Louis Bonaparte
Critique of the Gotha Programme
Manifesto of the Communist Party (along with Engels)
And, of course, Capital Vol I-III
Interested in Marxism-Leninism, but don't know where to start? Check out my "Read Theory, Darn it!" introductory reading list!
Eh, isn't that argument more about being greedy for ressources rather than capital in particular? I mean, why did empires conquer stuff?
There exists a strong current within Liberal economics that asserts that the formation we have arrived at now is because over time, Humanity has assumed the system most fit for our nature. Some take the path you percieve it as, a focus on greed, rather than Capitalism specifically, but that's not what the meme addresses.
The advancement Marx made is recognizing Capitalism as merely one stage in the progression of Modes of Production historically. His analysis of Socialism and Communism was rooted in how it naturally emerges from Capitalism, just as Capitalism had emerged from Feudalism. The Capitalist Realists, who see Capitalism as eternal, stand in contrast to that notion and assert Capitalism as the final default stage. "There is no alternative," of Thatcher.