IV. No one, therefore, can be conquered in a contest of benefits, if he knows how to owe a debt, if he wishes to make a return for what he has received, and raises himself to the same level with his friend in spirit, though he cannot do so in material gifts. As long as he remains in this temper of mind, as long as he has the wish to declare by proofs that he has a grateful mind, what difference does it make upon which side we can count the greater number of presents? You are able to give much; I can do nothing but receive. Fortune abides with you, goodwill alone with me; yet I am as much on an equality with you as naked or lightly armed men are with a large body armed to the teeth. No one, therefore, is worsted by benefits, because each man's gratitude is to be measured by his will. If it be disgraceful to be worsted in a contest of benefits, you ought not to receive a benefit from very powerful men whose kindness you cannot return, I mean such as princes and kings, whom fortune has placed in such a station that they can give away much, and can only receive very little and quite inadequate returns for what they give. I have spoken of kings and princes, who alone can cause works to be accomplished, and whose superlative power depends upon the obedience and services of inferiors; but some there are, free from all earthly lusts, who are scarcely affected by any human objects of desire, upon whom fortune herself could bestow nothing. I must be worsted in a contest of benefits with Socrates, or with Diogenes, who walked naked through the treasures of Macedonia, treading the king's wealth under his feet. In good sooth, he must then rightly have seemed, both to himself and to all others whose eyes were keen enough to perceive the real truth, to be superior even to him at whose feet all the world lay. He was far more powerful, far richer even than Alexander, who then possessed everything; for there was more that Diogenes could refuse to receive than that Alexander was able to give.