Grice's uncertainties

by JLS
for the GC

Grice writes in his 1966 "Descartes" piece, repr. in WoW:188ff.

""Certain" occurs in at least two distinguishable contexts: (i) "it is certain that p" (label this "objective certainty"), (ii) "x is certain that p" (label this "subjective" certainty". Perhaps, then, Descartes is subscribing to two rules (conflated): (1) whatever is clearly and distinctly perceived is objectively certain, (2) whatever is objectively certain is true."

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Cfr. with Heisenberg's perhaps unfortunate change from 'indeterminacy' (Unbestimmheit) to 'uncertainty' (unwussheit).