"All right. Look—logic!" He lifted his hairy fingers and pointed. "One: That new robot passed every test in the home laboratories. Two: United States Robots guaranteed their passing the test of actual performance on an asteroid. Three: The robots are not passing said tests. Four: If they don’t pass, United States Robots loses ten million credits in cash and about one hundred million in reputation. Five: If they don’t pass and we can’t explain why they don’t pass, it is just possible two good jobs may have to be bidden a fond farewell."