What is your weapon of choice? Knowledge. Knowledge is the strongest weapon I know.
I'm a doctor. I've seen the wounds physical weapons can cause. I've seen three year olds killed by stray gunfire, I've seen five year olds bit by siblings. I've seen thirteen year olds hooked on heroine. I've been stabbed by an eight inch butcher knife. Knives hurt. They hurt really bad.
Weapons like that can maim and kill. But knowledge...knowledge is the key. Knowledge gives people strength of a different kind. Strength to make good, positive choices. Knowledge to do the right thing, to think about the consequences and the options.
Knowledge is by far the most powerful weapon I know.