Dreamers of dreams may be pathfinders; but they may be mere vagrants. Of those who depart from the pavements, only a few are explorers: the rest are mere jaywalkers

The dogma of the Ghost in the machine.

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

Myths often do a lot of theoretical good, while they are still new.

In searching for the self, one cannot simultaneously be the hunter and the hunted.

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.

Only 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