Pig or Angel?

There was a monk who one day found himself in the presence of the King, who was not a very kind person.

During their conversation, for no apparent reason, the King said to the monk, "you know, you look just like a pig."

To this the monk calmly replied, "and you, Your Majesty, look just like an angel."

A bit bewildered, the King demanded, "how could you tell me I look like an angel when I just said you look like a pig?"

The monk responded, "when a pig looks, it sees pigs. When an angel looks, it sees angels."