Arrogance...

One evening a sheikh was talking about humility and service. He spoke
eloquently about service and putting others' needs before our own.
Then, someone asked, "What do you do with the arrogant? How can you
serve the arrogant?"
The sheikh drew himself up and raised his powerful voice, "With
the arrogant, you must behave arrogantly!" Everyone was shocked.
Then, the sheikh went on, "To treat the arrogant with humility
would be like giving them poison. It would only feed their arrogance."

Sheikh Muzaffer
as collected by James Fadiman & Robert Frager