This week, I'm a gypsy. Maybe next week it'll be glitter rock.

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.

I like change and I like contrast.

If you are on to something creative, school can also inhibit you. The wrong teacher, man, can really mess you up.

The greatest satisfaction is not the decoration. It is knowing that I am able to help someone who needs help.

Many people think of me as just a riff guitarist, but I think of myself in broader terms. As a musician I think my greatest achievement has been to create unexpected melodies and harmonies within a rock and roll framework. And as a producer I would like to be remembered as someone who was able to sustain a band of unquestionable individual talent, and push it to the forefront during its working career. I think I really captured the best of our output, growth, change and maturity on tape - the multifaceted gem that is Led Zeppelin.

I'm at my best when I'm exhausted and under pressure.