Diogenes of Sinope was a Cynic philosopher who lived in the 4th century BC. He rejected wealth, status, and social convention. He lived in a barrel, owned almost nothing, and famously told Alexander the Great to step out of his sunlight.
At some point, he was captured by pirates. They put him up for sale at a släve market. The story is recorded by Diogenes Laertius, the ancient biographer of the philosophers.
When the auctioneer asked what skills he had, Diogenes said he knew how to govern men. Then he pointed to a wealthy buyer in the crowd—a man named Xeniades—and told the auctioneer to sell him to that man, because he needed a master.
Xeniades bought him. He took Diogenes home and put him in charge of his household and his sons’ education.
The line works because it flips the logic of slav£ry. The buyer thinks he is acquiring a servant. Diogenes acts as if he is choosing a student. The philosopher who owned nothing claims authority over the man who owns everything.
