Here it may be replied that the words are not applied to persons and to machines in the same sense: that the two sorts of application are not applications of the same predicate. But now some criterion is needed for deciding when the same predicate is, and is not, beingapplied; and not only has Strawson failed to provide any such criterion, but it is evident, I think, that he could not provide it without presupposing some positions in the philosophy of mind.