Man need not be degraded to a machine by being denied to be a ghost in a machine.

It is of first-rate importance to notice from the start that stupidity is not the same thing, or the same sort of thing, as ignorance. There is no incompatibility between being well-informed and being silly, and a person who has a good nose for arguments or jokes may have a bad head for facts.

When two terms belong to the same category, it is proper to construct conjunctive propositions embodying them. Thus a purchaser may say that he bought a left-hand glove and a right- hand glove, but not that he bought a left-hand glove, a right- hand glove, and a pair of gloves. 'She came home in a flood of tears and a sedan-chair' is a well known joke based on the absurdity of conjoining terms of different types. Now the dogma of the Ghost in the Machine does just this. It maintains that there exist both bodies and minds.

Absolute solitude is on this showing the ineluctable destiny of the soul. Only our bodies can meet.

Overt intelligent performances are not clues to the workings of minds; they are those workings. Boswell described Johnson's mind when he described how he wrote, talked, ate, fidgeted and fumed. His description was, of course, incomplete, since there were notoriously some thoughts which Johnson kept carefully to himself and there must have been many dreams, daydreams and silent babblings which only Johnson could have recorded and only a James Joyce would wish him to have recorded.

Man need not be degraded to a machine by being denied to be a ghost in a machine. He might, after all, be a sort of animal, namely, a higher mammal. There has yet to be ventured the hazardous leap to the hypothesis that perhaps he is a man.

So too Plato was, in my view, a very unreliable Platonist. He was too much of a philosopher to think that anything he had said was the last word.