Lyric discussion by nayr 

Cover art for Know Your Enemy lyrics by Rage Against the Machine

this song seems to be about the 'system' in general and fighting against it. it talks about defiance, and the mind of a revolutionary which will change the system and "Now action must be taken We don't need the key We'll break in" is talking about breaking into the system to start revolution and ditch the capitalist system which has given the few the power to control the many. 'know your enemy' is obviously the main point in the song - to know as much, if not more, about your enemy than you do yourself because only then can you fight against them. the end is saying the enemy is the people who taught you to fit into the system and not be to yourself and who you should be, the people who made society the way it is. then there is the list of the characteristics of the system as it is - the capitalist system which makes an 'elite' section in society at everyone elses expense.