The implication of this is that hence 'one might ... imagine two kinds of creature, one whose essence it was to create and the other not, undergoing similarly toilsome histories because of similarly adverse circumstances. In one case, but not the other, the toil would be a self-alienating exercise of essential powers' (p. 170). Hence, 'historical materialism and Marxist philosophical anthropology are independent of, though also consistent with, each other' (p. 174, see especially sections 10 and 11).