Harrison Ford

We're all interconnected. For example, a simple lack of fresh water can lead to population dislocation, which can lead to political radicalization, which can lead to great pressure on the states that receive refugees because of a migrating population.

On the first 'Indiana Jones' movie, I tore an ACL in one of my knees - can't remember which knee. The scene in which I was fighting the big German mechanic on an airplane called a flying wing, I was run over by the landing gear and injured my knee, but I can't remember which one it was. Lots of bumps and injuries along the way.

When people said Africa would change me, I didn't understand what they meant. To see the poverty in the townships, for instance, is overwhelming. I found it heart-wrenching to see young children walking barefoot and hungry in the dirt. I'm the kind of person who wants to change the world right here and now, so I got frustrated.

When I have a creative insight, there is a high. I think back in the day, I made music as much as I did because it made me feel so good. I think you could argue that there is a creative addiction - but, you know, the healthy kind.