Force of Pen and Power of Sword

It is frequently said that Pen is mighter than Sword. As you of course know, you can't win the battle with a real pen as a sword toward a real sword.  What is the point of the quote?

Both pen and sword are used by human being.  If you use more stronger tool like a gun rather than sword, you will win.  Then, what is the strongest weapon?

It may be an intelligence.  That is why the pen is mighter than sword.  So what is an intelligence?  I think, as blogging before, that "way", "course" or "path" is the one which is dependent on time and its existence in brain widely in physical body.

Then how to improve an intelligence to be stronger than anything else?  It is the intelligence that improve an intelligence. The recrusivity cost a huge energy to construct the structure of the loop, but once you make it properly, the technique is reusable and it can save energy.

Math can be an intelligence.  Furthermore Math can be the intelligence to brush your intelligence up by thinking recrusively.  Of course there are another intelligence, like logic using language.  But why not to lose the chance to earn the powerful tool, math using numbers and notes.

Now I am introducing you to Math Apps on Google Play.  Please check them out! http//play.google.com/store/apps/developer?id=MathContext


Thanks for reading and let's get the intelligence!