Everything that I think is good is bad, and everything that I think is bad is good.

I don't want you to play me a riff that's going to impress Joe Satriani; give me a riff that makes a kid want to go out and buy a guitar and learn to play.

Of all the things I've lost I miss my mind the most.

I got rabies shots for biting the head off a bat but that's OK - the bat had to get Ozzy shots.

Maybe it's not too late to learn how to love and forget how to hate.

Sometimes I'm scared of being Ozzy Osbourne. But it could have been worse. I could have been Sting.

If you can laugh at your mistakes, it's a good thing.

My son Jack just got out of rehab, he's 17 years old and he got hooked on Oxycontin and I'm just a little pissed off that he never gave me a few.

Hating people isn’t a productive way of living. So what’s the point in hating anyone? There’s enough hate in the world as it is, without me adding to it.

When you’re in love, it’s not just about the messing around in the sack, it’s about how empty you feel when they’re gone.

You've got to believe in yourself, or no one will believe in you. Imagination is like a bird on the wing, flying free for you to use.

You often meet your fate on the road you take to avoid it.

(Priests) cheapjack merchants selling paradise

To do the useful thing to say the courageous thing to contemplate the beautiful thing: that is enough for one man's life.

A great work of art is one that continues to repay attention.

Empathy makes you more aware of other people's suffering, but it's not clear it actually motivates you to take moral action or prevents you from taking immoral action.

I want things to be the best they can be I want greatness.

Over time, grit is what separates fruitful lives from aimlessness.

Theories are just fantasies. And they change.

As there is a use in medicine for poisons, so the world cannot move without rogues.

I don't want to be shut out from the truth. If they ban books, they might as well lock us away from the world.