According to Islam: A wise man became a object of irony for the inhabitants of the city. One day he was walking down the main street with some of his disciples when a group of men and women began to insult him. The wise man went up to them and blessed them.
When they left, one of the disciples remarked: “They say terrible things, and you answer them with nice words.”
And the wise man replied: “Each one of us can only offer what he has.”
Excerpt from Paulo Coelho’s blog post: Wisdom