WHEN A DINER COMPLAINED
that he couldn’t eat the soup, the waiter called the manager.
“I am very sorry, Sir,” said the manager, “I will call the chef.”
When the chef arrived, the diner still insisted that he could not eat the soup.
“What’s wrong with it?” demanded the chef.
“Nothing at all,” answered the diner,
“It is just that I do not have a spoon.”

“THERE IS A FLY in my soup.” said a customer.
The waiter replied, “That’s all right, Sir, he won’t drink much.”

EDO  ERGO  SUM  [I eat, therefore I exist.]
A sure sign of vitality, since dead men don’t eat.
Edo Ergo Sum is evocative of the famous axiom of Descartes,
COGITO  ERGO  SUM  [I think, therefore I exist.]