Moshe was eating in a Chinese restaurant and was chatting to his Chinese waiter.
Moshe commented upon what a wise people the Chinese were.

"Yes," replied the waiter, "we're wise because our culture is 4,000 years old. But Jewish people are also very wise, are they not?"

Moshe replied, "Yes, we are. Our culture is 5,000 years old."

The waiter was surprised to hear this. "That can't be true," he replied, "where did your people eat for a thousand years?"