Is killing a known terrorist wrong? I ask this, did the terrorist allow any of his victims quarter? No, then allow him no quarter, and hoist the black flag.

I have always thought that in revolutions, especially democratic revolutions, madmen, not those so called by courtesy, but genuine madmen, have played a very considerable political part. One thing is certain, and that is that a condition of semi-madness is not unbecoming at such times, and often even leads to success.