tk, Yes, axiomatic systems are not infallible. Godel showed at best higher order logic is either inconsistent or incomplete. Does that mean we throw logic out the window? All Russell is saying in the quotation is that if we value logic, at some point we must rely on axioms and these axioms are necessarilly self evident, known without demonstration. Although ancillary to my point, this quote comes 1911 (The Philosophical Importance of Mathematical Logic), well after Russell discoverd his paradox (1901).

For now I am in agreement with Marx, his analysis of society, yet I have only read a fraction of his works. "Marxism" seems to have taken a life of its own, sometimes contradictory to Marx himself. How the "Marxists" Buried Marx is an interesting discussion of the Marxism phenomenon.