“Indeed, I cannot think why the whole bed of the ocean is not one solid mass of oysters, so prolific the creatures seem. Ah, I am wandering! Strange how the brain controls the brain! What was I saying, Watson?”

“I am a brain, Watson. The rest of me is a mere appendix.”

“His mouth started to speak, but his brain decided it hadn't got anything to say yet and shut it again. His brain then started to contend with the problem of what his eyes told it they were looking at, but in doing so relinquished control of the mouth which promptly fell open again. Once more gathering up the jaw, his brain lost control of his left hand which then wandered around in an aimless fashion. For a second or so the brain tried to catch the left hand without letting go of the mouth and simultaneously tried to think about what was buried in the ice, which is probably why the legs went and Arthur dropped restfully to the ground.”

“... we have created a man with not one brain but two. ... This new brain is intended to control the biological brain. ... The patient's biological brain is the peripheral terminal -- the only peripheral terminal -- for the new computer. ... And therefore the patient's biological brain, indeed his whole body, has become a terminal for the new computer. We have created a man who is one single, large, complex computer terminal. The patient is a read-out device for the new computer, and is helpless to control the readout as a TV screen is helpless to control the information presented on it.”

“I didn’t like how my body seemed to be intent on sabotaging my brain, especially since my brain was so good at sabotaging itself.”

“I say, Watson,’ he whispered, ‘would you be afraid to sleep in the same room as a lunatic, a man with softening of the brain, an idiot whose mind has lost its grip?’‘Not in the least,’ I answered in astonishment.‘Ah, that’s lucky,’ he said, and not another word would he utter that night.”