Most of those who have written about the Affects, and men’s way of living, seem to treat, not of natural things, which follow the common laws of natu… - Benedictus de Spinoza

Spinoza, as George Kline tells us, was a favorite with Russian Marxists: "Spinoza has received more attention from Soviet writers than any other pre-Marxian philosopher with the possible exception of Hegel" (Spinoza in Soviet Philosophy [London: Routledge and Kegan Paul, 1952]). Even before the revolution, Plechanov, a founding father of Russian Marxism and of the Russian Social-Democratic party, took to Spinoza, considering that Marxism itself was a variety of Spinozism, or, a Spinozism stripped of its theological attire. A. M. Deborin, who quotes Plechanov on this point in his essay in Kline's collection, and also his contribution, "Spinozismus and Marxismus", in Chronicon Spinozanum 5 (1927), where he further quotes Plechanov, and declares that "Marxism, the leading revolutionary doctrine of the present, which is materialistic through and through, stems in its philosophical world-view from Spinozism". Deborin founded a whole school around this notion, and one of his colleagues even called Spinoza "Marx without a beard". Stalin later denounced this school — an ultima ratio in Soviet intellectual life — and it declined.

If all that divides Marx from the Classical Economists amounts to the historical character of economic categories, Marx need only historicize these categories, refusing to take them as fixed, absolute or eternal, but, on the contrary, regarding them as relative, provisional and transitory, i.e., as categories subject in the last instance to the moment of their historical existence. In this case, Marx's relation to Smith and Ricardo can be represented as identical with Hegel's relation to classical philosophy. Marx would then be Ricardo set in motion, just as it is possible to describe Hegel as Spinoza set in motion; set in motion, i.e., historicized.

Such things as are good simply because they have been commanded or instituted, or as being symbols of something good, are mere shadows which cannot be reckoned among actions that are the offspring, as it were, or fruit of a sound mind and of intellect.