"That's the annoying part of it all. He seems entirely a different fellow." "The cleavage is perfect. You would think him a separate entity." Hamilton paused, "But neither of you refer to the other by name. That indicates a psychological block that may be important evidence." "O.K., what do we do?" "I must discover the reason for the split personality." "I can give you that reason. The engineer was forced into being a practical man because money lies in that direction. Upon getting out of college, there was a heavy debt. It was paid off by hard work--a habit formed and never broken. Bad habits, you know, are hard to break." "Interesting." "Well, the desire to delve into the physicist's realm stayed with the engineer, but people who had heavy purses were not interested in new ways to measure the ether-drift or the effect of cosmic radiation on the physical properties of carbon. Money wants more perfect pencil sharpeners, ways of automatically shelling peas, and efficient methods of de-gassing oil. All these things are merely applications in practice of phenomena that some physicist has uncovered and revealed and put on record so that some engineer can use the effect to serve his ends. "At any rate, the desire to be a physicist is strong, strong enough to cause schizophrenia. I, Dr. Hamilton, am a living, breathing, talking example that an engineer is but a frustrated physicist. He is the troubled one--I am the stable personality. I am happy, well-adjusted, and healthy." "I see. Yet he has his point. You, like other physicists, are not interested in making money. How, then, do you propose to live?" "A physicist--or an engineer--can always make out well. The bank account at the last sitting was something like ninety-four thousand, six hundred seventeen dollars and thirty-four cents." "That's quite a lot of money." "The engineer considers it a business backlog," said Thomas. "Equipment is costly. Ergo--see?" "I see. Seems you laid out a large sum of money for a mass spectrograph." "I did." "And what did he do?" "He made notes on it and is going to peddle it as a commercial product. He'll probably make fifty thousand dollars out of it." "I suggested that," admitted the psychiatrist. "That's all right. I don't mind. It sort of tickles me, basically. I do things constantly that make him roar with anguish. And then his only rebuttal is to take it and make something practical out of it." "I see." "That, you understand, is the game that has been going on for some time between all physicists and engineers." "If you'd leave one another alone, you'd all be better off," said Hamilton. "From what I've heard, the trouble lies in the fact that physicists are not too interested in the practical details, whilst the engineer resents the physicist's insistance upon getting that last point zero two percent of performance." "Are you willing to give me my answer?" "What answer?"