"Memory is a strange thing. It doesn't work like I thought it did. We are so used to thinking of it as a camera or a tape recorder, but it's not like that at all. It's more like a painter. It creates a picture, but it's not always the same picture."

Markets alone won't solve all development challenges - we need smart interventions too.

Directing is about creating a world that feels real and alive.

The process of discovery in mathematics is often more important than the result itself.