‘You would have to prove that to the government and the public, so why not prove it to me now.’

‘But what could our purpose be?’ demanded Lanning in exasperation. ‘Where is our motivation? Credit us with a minimum of sense.’

‘My dear sir, please. The Corporation would be only too glad to have the various Regions permit the use of humanoid positronic robots on inhabited worlds. The profits would be enormous. But the prejudice of the public against such a practice is too great. Suppose you get them used to such robots first-see, we have a skillful lawyer, a good mayorand he is a robot. Won’t you buy our robot butlers?’

‘Thoroughly fantastic. An almost humorous descent to the ridiculous.’

‘I imagine so. Why not prove it? Or would you still rather try to prove it to the public?’

The light in the office was dimming, but it was not yet too dim to obscure the flush of frustration on Alfred Lanning’s face. Slowly, the roboticist’s finger touched a knob and the wall illuminators glowed to gentle life.

‘Well, then,’ he growled, ‘let us see.’

The face of Stephen Byerley is not an easy one to describe. He was forty by birth certificate an,d forty by appearance-but it was a healthy, well-nourished good-natured appearance of forty; one that automatically drew the teeth of the bromide about ‘looking one’s age.’

This was particularly true when he laughed, and he was laughing now. It came loudly and continuously, died away for a bit, then began again­

And Alfred Lanning’s face contracted into a rigidly bitter monument of disapproval. He made a half gesture to the woman who sat beside him, but her thin, bloodless lips merely pursed themselves a trifle.

Byerley gasped himself a stage nearer normality.

‘Really, Dr Lanning . . . really – I . . . I . . . a robot?’

Lanning bit his words off with a snap, ‘It is no statement of mine, sir. I would be quite satisfied to have you a member of humanity. Since our corporation never manufactured you, I am quite certain that you are-in a legalistic sense, at any rate. But since the contention that you are a robot has been advanced to us seriously by a man of certain standing—’

‘Don’t mention his name, if it would knock a chip off your granite block of ethics, but let’s pretend it was Frank Quinn, for the sake of argument, and continue.’

Lanning drew in a sharp, cutting snort at the interruption, and paused ferociously before continuing with added frigidity, ‘ – by a man of certain standing, with whose identity I am not interested in playing guessing games, I am bound to ask your cooperation in disproving it. The mere fact that such a contention could be advanced and publicized by the means at this man’s disposal would be a bad blow to the company I represent – even if the charge were never proven. You understand me?’

‘Oh, yes, your position is clear to me. The charge itself is ridiculous. The spot you find yourself in is not. I beg your pardon, if my laughter offended you. It was the first I laughed at, not the second. How can I help you?’

‘It could be very simple. You have only to sit down to a meal at a restaurant in the presence of witnesses, have your picture taken, and eat.’ Lanning sat back in his chair, the worst of the interview over. The woman beside him watched Byerley with an apparently absorbed expression but contributed nothing of her own.

Stephen Byerley met her eyes for an instant, was caught by them, then turned back to the roboticist. For a while his fingers were thoughtful over the bronze paper-weight that was the only ornament on his desk.

He said quietly, ‘I don’t think I can oblige you.’

He raised his hand, ‘Now wait, Dr Lanning. I appreciate the fact that this whole matter is distasteful to you, that you have been forced into it against your will, that you feel you are playing an undignified and even ridiculous part. Still, the matter is even more intimately concerned with myself, so be tolerant.

‘First, what makes you think that Quinn – this man of certain standing, you know – wasn’t hoodwinking you, in order to get you to do exactly what you are doing?’

‘Why it seems scarcely likely that a reputable person would endanger himself in so ridiculous a fashion, if he weren’t convinced he were on safe ground.’

There was little humor in Byerley’s eyes, ‘You don’t know Quinn. He could manage to make safe ground out of a ledge a mountain sheep could not handle. I suppose he showed the particulars of the investigation he claims to have made of me?’

‘Enough to convince me that it would be too troublesome to have our corporation attempt to disprove them when you could do so more easily.’

‘Then you believe him when he says I never eat. You are a scientist, Dr Lanning. Think of the logic required. I have not been observed to eat, therefore, I never eat Q.E.D. After all!’

‘You are using prosecution tactics to confuse what is really a very simple situation.’

‘On the contrary, I am trying to clarify what you and Quinn between you are making a very complicated one. You see, I don’t sleep much, that’s true, and I certainly don’t sleep in public. I have never cared to eat with others-an idiosyncrasy which is unusual and probably neurotic ih character, but which harms no one. Look, Dr Lanning, let me present you with a suppositious case. Supposing we had a politician who was interested in defeating a reform candidate at any cost and while investigating his private life came across oddities such as I have just mentioned.

‘Suppose further that in order td smear the candidate effectively, he comes to your company as the ideal agent. Do you expect him to say to you, ‘So-and-so is a robot because he hardly ever eats with people, and I have never seen him fall asleep in the middle of a case; and once when I peeped into his window in the middle of the night, there he was, sitting up with a book; and I looked in his frigidaire and there was no food in it.’

‘If he told you that, you would send for a straitjacket. But if he tells you, ‘He never sleeps; he never eats,’ then the shock of the statement blinds you to the fact that such statements are impossible to prove. You play into his hands by contributing to the to-do.’

‘Regardless, sir,’ began Lanning, with a threatening obstinacy, ‘of whether you consider this matter serious or not, it will require only the meal I mentioned to end it.’

Again Byerley turned to the woman, who still regarded him expressionlessly. ‘Pardon me. I’ve caught your name correctly, haven’t I? Dr Susan Calvin?’

‘Yes, Mr Byerley.’’

‘You’re the U. S. Robot’s psychologist, aren’t you?’

‘Robopsychologist, please.’

‘Oh, are robots so different from men, mentally?’

‘Worlds different.’’ She allowed herself a frosty smile, ‘Robots are essentially decent.’

Humor tugged at the corners of the lawyer’s mouth, ‘Well, that’s a hard blow. But what I wanted to say was this. Since you’re a psycho – a robopsychologist, and a woman, I’ll bet that you’ve done something that Dr Lanning hasn’t thought of.’

‘And what is that?’

‘You’ve got something to eat in your purse.’

Something caught in the schooled indifference of Susan Calvin’s eyes. She said, ‘You surprise me, Mr Byerley.’

And opening her purse, she produced an apple. Quietly, she handed it to him. Dr Lanning, after an initial start, followed the slow movement from one hand to the other with sharply alert eyes.

Calmly, Stephen Byerley bit into it, and calmly he swallowed it.

‘You see, Dr Lanning?’

Dr Lanning smiled in a relief tangible enough to make even his eyebrows appear benevolent. A relief that survived for one fragile second.

Susan Calvin said, ‘I was curious to see if you would eat it, but, of course, in the present case, it proves nothing.’

Byerley grinned, ‘It doesn’t?’

‘Of course not. It is obvious, Dr Lanning, that if this man were a humanoid robot, he would be a perfect imitation. He is almost too human to be credible. After all, we have been seeing and observing human beings all our lives; it would be impossible to palm something merely nearly right off on us. It would have to be all right. Observe the texture of the skin, the quality of the irises, the bone formation of the hand. If he’s a robot, I wish U. S. Robots had made him, because he’s a good job. Do you suppose then, that anyone capable of paying attention to such niceties would neglect a few gadgets to take care of such things as eating, sleeping, elimination? For emergency use only, perhaps; as, for instance, to prevent such situations as are arising here. So a meal won’t really prove anything.’

‘Now wait,’ snarled Lanning, ‘I am not quite the fool both of you make me out to be. I am not interested in the problem of Mr Byerley’s humanity or nonhumanity. I am interested in getting the corporation out of a hole. A public meal will end the matter and keep it ended no matter what Quinn does. We can leave the finer details to lawyers and robopsychologists.’

‘But, Dr Lanning,’ said Byerley, ‘you forget the politics of the situation. I am as anxious to be elected as Quinn is to stop me. By the way, did you notice that you used his name? It’s a cheap shyster trick of mine; I knew you would, before you were through.’

Lanning flushed, ‘What has the election to do with it?’