This article is from the Martial Arts FAQ, by Matthew Weigel firstname.lastname@example.org with numerous contributions by others.
In brief: You can't. While a Martial Artist does learn combat skills,
the final objective of a Martial Art is not to become the deadliest
The Martial Arts recognize there will always be someone who is bigger,
stronger, faster, has a bigger knife, a more powerful gun, a longer
range missile, and so on. The objective, then, is to become the best
that you can be, regardless of how good anyone else is.