Robert Jordan said this quote

Do you know how to unite people behind you, Child Carridin? The quickest way? No? Loose a lion - a rabid lion - in the streets. And when panic grips the people, once it has turned their bowels to water, calmly tell them you will deal with it. Then you kill it, and order them to hang the carcass up where everyone can see. Before they have time to think, you give another order, and it will be obeyed. And if you continue to give orders, they will continue to obey, for you will be the one who saved them, and who better to lead?