“My mother said violence never solves anything.” “So?” Mr. Dubois looked at her bleakly. “I’m sure the city fathers of Carthage would be glad to know that.” – Starship Troopers


My Take – 


Violence should be our last problem solving tool, if we can help it.  And we have to recognize that, like all solutions to problems, there are unintended consequences to using violence, a lot of which are less than optimal.  But violence, if properly applied at the correct place, at the correct time, and in the correct amount is a valid tool to solve problems.