Songs that reflect the negative and positive pattern of human nature?

i love music soo much.. as they say & i zealously believe so , it is the language of the soul. I admire so much the composer & lyricist for creating such inspiring & influential song.. I haven't heard the songs you mentioned yet ( expect for the most recent) but it sure is inspirational. Personally, I like Youth by Matisyahu. It entails & challenges the present generation to be part of the world. ;)