Chuang Tzu and the Fish
One day Chuang Tzu and a friend were walking by a river.
"Look at the fish swimming about," said Chuang Tzu, "They are really
"You are not a fish," replied the friend, "So you can't trully know
that they are enjoying themselves."
"You are not me," said Chuang Tzu, "So how do you know that I do not
know that the fish are enjoying themselves?"