Non-violence is the greatest force at the disposal of mankind. It is mightier than the mightiest weapon of destruction devised by the ingenuity of man.
Allow the president to invade a neighboring nation, whenever he shall deem it necessary to repel an invasion, and you allow him to do so whenever he may choose to say he deems it necessary for such a purpose - and you allow him to make war at pleasure.
I believe all religions pursue the same goals, that of cultivating human goodness and bringing happiness to all human beings. Though the means might appear different the ends are the same.
If you will not fight for right when you can easily win without bloodshed; if you will not fight when your victory will be sure and not too costly; you may come to the moment when you will have to fight with all odds against you and only a precarious chance of survival. There may be even a worse fate, you may have to fight when there is no hope of victory, because it is better to perish than to live as slaves.