Important Matters(?)

As if lives matter,
We live and die
No matter. 
                         (There is no avoiding it.)
As if nothing matters,
We live and die
Mad as hatters.
                         (You only live once.)
As if matter matters,
We live and die
Growing fatter.
                         (The highest score wins.)
The matters that matter?
We live and die.
So what is the matter?
                         (We are post-modern
                         and pro-matter.
                         Nothing else matters.)