System, that could have done what Fal Sivas has done. I have given that seemingly insensate mechanism a brain with which to think. I have perfected my mechanical brain, Vandor, and with just a little more time, just a few refinements, I can send this ship out alone; and it will go where I wish it to go and come back again.

"Doubtless, you think that impossible. You think Fal Sivas is mad; but look! watch closely."

He centered his gaze upon the nose of the strange-looking craft, and presently I saw it rise slowly from its scaffolding for about ten feet and hang there poised in mid-air. Then it elevated its nose a few feet, and then its tail, and finally it settled again and rested evenly upon its scaffolding.

I was certainly astonished. Never in all my life had I seen anything so marvellous, nor did I seek to hide my admiration from Fal Sivas.

"You see," he said, "I did not even have to speak to it. The mechanical mind that I have installed in the ship responds to thought waves. I merely have to impart to it the impulse of the thought that I wish it to act upon. The mechanical brain then functions precisely as my brain would, and directs the mechanism that operates the craft precisely as the brain of the pilot would direct his hand to move levers, press buttons, open or close throttles.

"Vandor, it has been a long and terrible battle that I have had to wage to perfect this marvellous mechanism. I have been compelled to do things which would revolt the finer sensibilities of mankind; but I believe that it has all been well worthwhile. I believe that my greatest achievement warrants all that it has cost in lives and suffering.

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