I've got so much material; like, it feels as if every day I'm coming up with so many riffs.

Without Metallica, I wouldn't be doing what I am doing. I have every Metallica record, of course, and I would spend hours on drums in my parents' basement with the stereo behind me, cranking those records and learning Lars' drum beats, beat by beat.

I think that no matter how old you get, you are always learning about yourself.

The music has always been the first and foremost element in our career.

When a company creates a product that directly or indirectly adversely impacts the health of people, that product must be regulated. The process by which it's created must be regulated. No company has the right to injure people. No company.

Being entirely honest with oneself is a good exercise.

I travel the world visiting global health programs as an ambassador for the global health organization, PSI, and sometimes the disconnect I see is truly striking: people can get cold Coca Cola, but far too infrequently malaria drugs; most own mobile phones, but don't have equal access to pre-natal care.

There's a new science out called orthomolecular medicine. You correct the chemical imbalance with amino acids and vitamins and minerals that are naturally in the body.