You Must Be Willing by Against me! a B-Side off of their Thrash Unreal 7". Very simple 
powerful song, like all of AM!'s. A pretty long song for them though.
Enjoy.

(Easy slow-moving strum pattern like in song)
CHORD DIAGRAM:
   C	   Am	   Dm	 Dsus      F

e|-0-------0-------1-------3-------1-|
B|-1-------1-------3-------3-------1-|
G|-0-------2-------2-------2-------2-|
D|-2-------2-------0-------0-------3-|
A|-3-------0-------0-------0-------3-|
E|-3-------0-------x-------x-------1-|


Intro: C Am Dm F

               C
Let there be a volume that cannot be denied.
               Am
Let there be an emotion that you cannot fake
   Dm
A greatness unanimously acknowledged, a lie
 F
that you just cannot tell.

              C
Let them know hatred, fear, and war. Let
        Am
there be peace for us all.
         Dm
With our goals one day met, let us know a
feeling of great accomplishment.
         F
With our failures complete, let us learn to survive.

[CHORUS] (optional: pick the strings other than strum )
     Am        C           C
Your body will know if it?s not the right way
 Dm Dsus Dm
to go, just listen
Am            C         C       Dm Dsus Dm
closely to your heart and follow.
           Am       C               C
You must be willing to abandon it all.
 Dm                    C
You must be willing to starve.
[END CHORUS]
       C
Let us challenge the wait for a day of reckoning.
       Am
Let us deny shame and guilt.
       Dm
Let us know with absolute certainty that we
      F
were fools to ever second guess ourselves.
            C
Let us know a feeling of invincibility, as
 Am
real as our fragile bones.
        Dm
There's a truth to be learned, I'm sure of
it, just like I know there
   F
is nothing at all.

[CHORUS x2] (optional: pick the strings other than strum )
     Am        C           C
Your body will know if it?s not the right way
 Dm Dsus Dm
to go, just listen
Am            C         C       Dm Dsus Dm
closely to your heart and follow.
           Am       C               C
You must be willing to abandon it all.
 Dm                    C
You must be willing to starve.
[END CHORUS]