The paper considers T.S. Eliot's 'dissociation of sensibility' thesis, considering its philosophical value and attempting to defend it against published objections. While accepting some of the criticisms, it is argued that Eliot's argument is sound to a significant extent. Eliot's account retains explanatory power with regard to an enduring arts-science divide in schooling and, more broadly, in environmental ethics. In both these areas, educators can, and should, find greater synergies between arts and science, and theoria and praxis, despite continuing pressures on the school curriculum to move in the opposite direction. It is suggested that an acknowledgement of living as semiosis can be helpful in this respect.