U Dont Know Me!

Slipknot just puts it nicely in "My Plague":

I don't mind being ogled,ridiculed
Made to feel minuscule
If you consider the source,it's kinda pitiful
The only thing you really know about me is...
...that's all you'll ever know (Full lyrics)

And not less eloquently, POD puts it beatifully in "Anything Right":

I can't do anything right
You don't know me, stay out of my life
Kick me while I'm down, I want you to
I can't be like you
Don't want to be like you (Full lyrics)

Finally, Linking Park in their mysterious ways in "Easier To Run":

Something has been taken
From deep inside of me
A secret I've kept locked away
No one can ever see (Full lyrics)