I don't even think any stimulants really help writing. You talk to most guys and they say, "Hey. I wrote this." And they're out of their head or they had a few beers or a bottle of whiskey. You wake up the next morning, it's usually pretty crap. But you know Dylan Thomas wrote some great poetry. Brendan Behan. You never know but ultimately I'd say you have to get up early in the morning and you're usually sober when you write your good stuff; it's hard work. So alcohol, keep it for chilling out, fun, and having a good time. Not for work.

A weird theory I have is we come from a suppressed culture. Ireland is one of the most invaded countries ever. I think the British started it very early, it could be like 800 that decided to come and show us out; and the Danes in the north. We've had a tough time and pretty much a similar culture would be the Jewish culture; they had a pretty hard time. They were being kicked around for a long, long time.

There is a terrible thing that's been happening probably for the last 20 years or so and it's called the music business. And music isn't really business; it's work and you got to pay and you've got to buy your guitar or go into the studio. So there is a business side but when people say, "I'm going into the music business," it's not. It's about expression. It's about creativity. You don't join music, in my mind, to make money. You join it because it's in you; it's in your blood stream.

I like a fine wine. Who can beat that? I don't think it helps writing; I think it's a hinderance. It helps numb you.

I have shot myself in the foot so many times, I'm crippled. Look, I am not exactly Mr. Great Career Guy. I shoot actually what I think. In a weird way, I used to think that was really messed up. Now I think it's okay. Mistakes, once you don't repeat the same mistakes, have no regrets. Live and learn. We mess up, so what. But know why you messed up and don't make the same mistake.

Friday was added to my nickname because I have a talent of getting on with most people. So it's a bit of a man Friday thing.

I love the way an Irish man, they can hardly speak proper English, is doing William Shakespeare. So I find that extraordinary as I get older. But I always see music, live shows, performances as moments and to really get there you've just got to actually get into the essence, flesh and the blood.