I always loved this song, and the lyric is very deep and interesting, it’s amazing how in that time Bob Marley was already so in the future that he could insert in his lyrics things that even today we don’t have the abbility to overcome.
Check how this guys from Playing for Change have worked out a version off the song played by people around the world.
Emancipate yourselves from mental slavery
None but ourselves can free our minds
Have no fear for atomic energy
‘Cause none of them can stop the time
How long shall they kill our prophets
While we stand aside and look? Ooh
Some say it’s just a part of it
We’ve got to fullfil the book