In all the cases which I have mentioned, each party is the owner of the same thing. How is this? It is because the one owns the thing, the other owns the use of the thing. We speak of the books of Cicero. Dorus, the bookseller, calls these same books his own; the one claims them because he wrote them, the other because he bought them; so that they may quite correctly be spoken of as belonging to either of the two, for they do belong to each, though in a different manner. Thus Titus Livius may receive as a present, or may buy his own books from Dorus. Although the wise man possesses everything, yet I can give him what I individually possess; for though, king-like, he in his mind possesses everything, yet the ownership of all things is divided among various individuals, so that he can both receive a present and owe one; can buy, or hire things. Everything belongs to Caesar; yet he has no private property beyond his own privy purse; as Emperor all things are his, but nothing is his own except what he inherits. It is possible, without treason, to discuss what is and what is not his; for even what the court may decide not to be his, from another point of view is his. In the same way the wise man in his mind possesses everything, in actual right and ownership he possesses only his own property.