 12. Historicism as half-naturalistic. Historicist accounts do not appeal to supernatural factors or to factors beyond the possibility of human cognition such as clairvoyance or the metaphysical truth about reality. Historicists usually take a second step toward naturalism in considering humans as biologically limited beings, but they resist reduction to the natural science brand of naturalism. Philosophical historicists also reject the reduction of norms to facts. (But, late in life, R.G. Collingwood may have come to hold a strong version of historicism according to which philosophy reduces to history: see the entry on  Collingwood.  Some new-wave sociologists may have held a parallel reductionist view about philosophy and sociology, insofar as philosophy was worth saving.)