I remember one particular occasion when I hadn't played a solo for, quite literally, a couple of months. And I was asked to play a solo on a rock & roll thing. I played it and felt that what I'd done was absolute crap. I was so disgusted with myself that I made my mind up that I had to get out of it. It was messing me right up.

Just because you play bass, doesn't mean you have no presence.

Artists say that paintings are never done. I sort of feel the same way about music. I would never say something is perfect. There are performances that can generate a lot of emotion in me when I hear them, but I can't say if anything is perfect.

I don't like being stuck in one situation, day to day.

I bet you can't play slide piano.

If you wanted to chart new territories and head off over the horizon, you had to make sure you weren't overly influenced by what others were doing ... so it didn't matter what other bands were doing ... we did what we were doing.

The key to Zeppelin's longevity has been change.