When I was growing up, I said to my ex-girlfriend, 'I will not be successful until everyone in Holland knows my name.' And it worked.

I'm a producer for fun. I'm not a professional schooled musician or anything.

At a festival, a lot of people came to see other artists, so you have to put on a signature set and performance: 'This is what I do, this is why I'm here.' At solo gigs, I'm a DJ - I'll play two-and-a-half hours, and not just my own music, also my favorite songs by other artists.

When I started producing, I was just making music under all different names. 'Black Afro.' 'Super Grandmaster.' 'Mister Bull.' Like, the most stupid, idiotic names. 'Afrojack' was one of those idiotic names.

This book is about physics and its about physics and its relationship with mathematics and how they seem to be intimately related and to what extent can you explore this relationship and trust it.

There's people who watch shows while they're preparing their dinners, and they don't want to focus, and they don't want to be challenged, and whatever. And then there's people who want to really sit down and get into a character in a world, and feel like they're expanding, or they have complex relationships, or whatever.

Relationships with parents, grandparents, friends, and siblings were important to me when I was young and have remained so throughout my life. Our relationships with other people both shape and reflect who we are. These relationships are infinitely fascinating to explore!

Relationships with people in general, in no matter what capacity, are something that’s very emotional. They mean a lot to you. I think having eyes on that in a critical way can be really tough."