Can exchange bring us together? Are there any physical or intangible goods that escape the logic of the marketplace? Is there a relationship between truth--the very purpose of philosophy--and money? Does truth have a price? Contrary to the Sophists, who demanded payment in return for their expertise, Socrates spoke for free. He had to do so, according to Aristotle, because knowledge cannot be measured--though he could accept gifts in return. Today, we expect artists and intellectuals to be compensated for their labors. But is giving merely a form of exchange that was replaced by commerce?...

Can exchange bring us together? Are there any physical or intangible goods that escape the logic of the marketplace? Is there a relationship between truth--the very purpose of philosophy--and money? Does truth have a price? Contrary to the Sophists, who demanded payment in return for their expertise, Socrates spoke for free. He had to do so, according to Aristotle, because knowledge cannot be measured--though he could accept gifts in return. Today, we expect artists and intellectuals to be compensated for their labors. But is giving merely a form of exchange that was replaced by commerce?...