"You must—if you wish to freeze him out—develop something that will frustrate the physicist and still be possible to rationalize in your own personality."
"Um."
"An insolvable problem would do it—if you can shun the problem yourself."
"That might be difficult."
"Especially when the two of you are inclined to become the other when faced with a problem that does not fit in your psyche."
"The problem—I wonder."
"What do you do when you are faced with a tough or impossible problem in physics?"
"I don't get 'em, usually."
"Well, supposing some company required a casting of tungsten metal, for instance."
"I'd ask that they show me exactly why the tungsten couldn't be formed in another manner."