This quote was on the side of my Starbucks coffee cup this morning:

Everywhere, unthinking mobs of “independent thinkers” wield tired cliches like cudgels, pummeling those who dare question “enlightened” dogma. If “violence never solved anything,” cops wouldn’t have guns and slaves may never have been freed. If it’s better that 10 guilty men go free to spare one innocent, why not free 100 or 1,000,000? Cliches begin arguments, they don’t settle them.
[Jonah Goldberg, Editor-at-large of National Review Online]