"To do the Ozzfest again would be great. I'd like to finish with a final Sabbath album. You always feel that it is still a challenge"

Geezer Butler's quote speaks with the concept of continuing to challenge oneself and to strive for greatness. He expresses his desire to do the Ozzfest once again, which is a music celebration that has actually been running considering that 1996. This shows his dedication to continuing to challenge himself and to strive for achievement. He also expresses his desire to complete with a final Sabbath album, which is a recommendation to the heavy metal band Black Sabbath, which he was a founding member of. This reveals his dedication to the band and to the music he has produced. His quote talks to the concept of continuing to challenge oneself and to pursue greatness, even when one has actually attained success. It is a suggestion that no matter how effective one is, there is constantly room for improvement and development. It is a tip to never become contented and to constantly strive for greatness.