SEVERAL years ago a young man came to my study with a manuscript which he wished me to criticize.

'It is only a little bit of my work,' he said modestly, 'and it will not take you long to look it over. In fact it is only the first chapter, in which I explain the Universe.'

I suppose that we have all had moments of sudden illumination when it occurred to us that we had explained the Universe, and it was so easy for us that we wondered why we had not done it before. Some thought drifted into our mind and filled us with vague forebodings of omniscience. It was not an ordinary thought, that explained only a fragment of existence. It explained everything. It proved one thing and it proved the opposite just as well. It explained why things are as they are, and if it should turn out that they are not that way at all, it would prove that fact also. In the light of our great thought chaos seemed rational.

Such thoughts usually occur about four o'clock in the morning. Having explained the Universe, we relapse into satisfied slumber. When, a few hours later, we rise, we wonder what the explanation was.

Now and then, however, one of these highly explanatory ideas remains to comfort us in our waking hours. Such a thought is that which I here throw out, and which has doubtless at some early hour occurred to most of my readers. It is that every man has a natural desire to be somebody else.

This does not explain the Universe, but it explains that perplexing part of it which we call Human Nature. It explains why so many intelligent people, who deal skillfully with matters of fact, make such a mess of it when they deal with their fellow creatures. It explains why we get on as well as we do with strangers, and why we do not get on better with our friends. It explains why people are so often offended when we say nice things about them, and why it is that, when we say harsh things about them, they take it as a compliment. It explains why people marry their opposites and why they live happily ever afterwards. It also explains why some people don't. It explains the meaning of tact and its opposite.

The tactless person treats a person according to a scientific method as if he were a thing. Now, in dealing with a thing, you must first find out what it is, and then act accordingly. But with a person, you must first find out what he is and then carefully conceal from him the fact that you have made the discovery.

The tactless person can never be made to understand this. He prides himself on taking people as they are without being aware that that is not the way they want to be taken.

He has a keen eye for the obvious, and calls attention to it. Age, sex, color, nationality, previous condition of servitude, and all the facts that are interesting to the census-taker, are apparent to him and are made the basis of his conversation. When he meets one who is older than he, he is conscious of the fact, and emphasizes by every polite attention the disparity in years. He has an idea that at a certain period in life the highest tribute of respect is to be urged to rise out of one chair and take another that is presumably more comfortable. It does not occur to him that there may remain any tastes that are not sedentary. On the other hand, he sees a callow youth and addresses himself to the obvious callowness, and thereby makes himself thoroughly disliked. For, strange to say, the youth prefers to be addressed as a person of precocious maturity.

The literalist, observing that most people talk shop, takes it for granted that they like to talk shop. This is a mistake. They do it because it is the easiest thing to do, but they resent having attention called to their limitations. A man's profession does not necessarily coincide with his natural aptitude or with his predominant desire. When you meet a member of the Supreme Court you may assume that he is gifted with a judicial mind. But it does not follow that that is the only quality of mind he has; nor that when, out of court, he gives you a piece of his mind, it will be a piece of his judicial mind that he gives.