To see is one thing; to picture or visualise is another. A person can see things, only when his eyes are open, and when his surroundings are illuminated; but he can have pictures in his mind's eye, when his eyes are shut and when the world is dark.
Gilbert RyleOvert 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.
Gilbert RyleWhen the epistemologists' concept of consciousness first became popular, it seems to have been in part a transformed application of the Protestant notion of conscience."Consciousness" was imported to play in the mental world the role played by light in the mechanical world.
Gilbert RyleOnly through the medium of the public physical world can the mind of one person make a difference to the mind of another. The mind is in its own place and in each of us lies an inner life, the life of a ghostly Robinson Crusoe. People can see, hear, and jolt one another's bodies, but they are irremediably blind and deaf to the workings of one another's minds
Gilbert Ryle