Rock is a genre of popular music which developed in 1950s America and has had sustained worldwide popularity since the 1960s.
- "In fact rock, rather than being an example of how freedom can be achieved within the capitalist structure, is an example of how capitalism can, almost without conscious effort, deceive those whom it oppresses.... So effective has the rock industry been in encouraging the spirit of optimistic youth take-over that rock's truly hard political edge, its constant exploration of the varieties of youthful frustration, has been ignored and softened."
- "Ever since I was 12 years old, I've had to defend my love of heavy metal against those who say it's a less valid form of music. My answer now is that you either feel it, or you don't. If metal doesn't give you that overwhelming surge of power and make the hair stand up on the back of your neck, you might never get it. And you know what? That's ok; because judging by the 40,000 metalheads around me, we're doing just fine without you."
- Sam Dunn, Metal: A Headbanger's Journey