Why Some Bad Arguments Are Hard To Refute

"It may be easier to obviate an objection which has some force in it than to overthrow another which has positively no force at all; in fact, the most difficult arguments to answer are [those] which are insane at the core, for you must be insane yourself before you can quite catch the thought which insanity has uttered, and as you do not wish to qualify for controversy with fools, by becoming a fool yourself, you may not be able to reply to your antagonist." (Charles Spurgeon)