Good leaders must have thick skin. I have noticed that critics run with critics. Sometimes the best course of action is to respond to criticism and learn from it. Other times, it must be completely ignored. It is a common knowledge that the first thing most leaders will do when attacked is retaliate.
Leaders are often people of strong wills.
However, you are never more successful than when you are on your knees in prayer. If you want wisdom in knowing how to handle any problem, drop to your knees. One of the knottiest situations a minister can put himself into is personal retaliation. He is going to be criticized by some, no matter what. The worst thing he can do is fight every critic, one by one.