“Things which equal the same thing equal each other, do they not? Therefore, the inner and outer boundaries of Trabol are of equal length, and this is true because of the truth of the theory of relativity of distance. The degree is our unit of linear measure. It would be ridiculous to say that the farther one was removed from the center of Amtor the longer the unit of distance became; it only appears to become longer; in relation to the circumference of the circle and in relation to the distance from the center of Amtor it is precisely the same. “I know,” he admitted, “that on the map it does not appear to be the same, nor do actual surveys indicate that it is the same; but it must be the same, for if it were not, it is obvious that Amtor would be larger around the closer one approached the center and smallest of all at the perimeter, which is so obviously ridiculous as to require no refutation. “This seeming discrepancy caused the ancients considerable perturbation until about three thousand years ago, when Klufar, the great scientist, expounded the theory of relativity of distance and demonstrated that the real and apparent measurements of distance could be reconciled by multiplying each by the square root of minus one.” I saw that argument was useless and said no more; there is no use arguing with a man who can multiply anything by the square root of minus one. V THE GIRL IN THE GARDEN For some time I had been aware that I was in the house of Mintep, the king, and that the country was called Vepaja. Jong, which I had originally thought to be his name, was his title; it is Amtorian for king. I learned that Duran was of the house of Zar and that Olthar and Kamlot were his sons; Zuro, one of the women I had met there, was attached to Duran; the other, Alzo, was attached to Olthar; Kamlot had no woman. I use the word attached partially because it is a reasonably close translation of the Amtorian word for the connection and partially because no other word seems exactly to explain the relationship between these men and women. They were not married, because the institution of marriage is unknown here. One could not say that they belonged to the men, because they were in no sense slaves or servants, nor had they been acquired by purchase or feat of arms. They had come willingly, following a courtship, and they were free to depart whenever they chose, just as the men were free to depart and seek other connections; but, as I was to learn later, these connections are seldom broken, while infidelity is as rare here as it is prevalent on earth.