Abstract
Harvey Siegel’s conception of critical thinking is riddled with unnecessary and confusing dualisms. He rigidly separates ‘critical skill’ and ‘critical spirit’, the philosophical and the causal, ‘is’ and ‘ought’, and the moral and the epistemological. These dualisms are easily traced to his desire to defend an absolutist and decontextualised epistemology. To the Deweyan naturalist these dualisms are unnecessary. Appealing to the pragmatist notion of beliefs as embodied habits of action evincing emotion, I show how language, meanings and the mind, including the mind of the critical thinker, emerge from our biological being.