The fox served the stork soup in a shallow bowl — and went hungry at the return dinner

A fox invited a stork to dinner. The fox served a fine soup — but poured it into a shallow dish. The stork, with a long, narrow beak, could not eat a single drop. The fox lapped it up and pretended not to notice. 'Is the soup not to your liking?' he asked. The stork said nothing.

Some days later the stork invited the fox to return the visit. The stork prepared a delicious meal and served it in a tall, narrow jar with a long neck. The fox could not reach the food. The stork ate everything while the fox watched, hungry. 'I hope the meal is to your liking?' the stork said.

The fable is one of Aesop's most widely adapted. La Fontaine rendered it in verse, and it has entered common understanding through the principle of reciprocity. The fox's error is not cruelty (the soup was fine) but a failure of strategic empathy: he designed the terms of a transaction from his own perspective only and did not consider that the counterparty would one day set the terms instead.