ABSTRACT
An effective way of making someone abandon his standpoint is to create a mixed dispute and prove the opposite standpoint. Someone who can be convinced that smoking is bad for you is likely to cease maintaining that it is good for you (although it is by no means necessary for him to do so). As a successful attack on the original standpoint consists then of a successful defense of the opposite standpoint, here at least we could justly say that defense is the best form of attack.
