I have a place among the knights, not to sell, or to let, or to dwell in, but simply to see the spectacle from, wherefore I do not tell an untruth when I say that I have a place among the knights’ seats. Yet if, when I come into the theatre, the knights’ seats are full, I both have a seat there by right, because I have the privilege of sitting there, and I have not a seat there, because my seat is occupied by those who share my right to those places. Suppose that the same thing takes place between friends; whatever our friend possesses, is common to us, but is the property of him who owns it; I cannot make use of it against his will. “You are laughing at me,” say you; “if what belongs to my friend is mine, I am able to sell it.” You are not able; for you are not able to sell your place among the knights’ seats, and yet they are in common between you and the other knights. Consequently, the fact that you cannot sell a thing, or consume it, or exchange it for the better or the worse does not prove that it is not yours; for that which is yours under certain conditions is yours nevertheless.