All of us, if we are reasonably comfortable, healthy and safe, owe immense debts to the past. There is no way, of course, to repay the past. We can only repay those debts by making gifts to the future.

Jane Jacobs, journalist

It’s our city. Let’s fix it.

TALK

Alessandra Orofino, TED, October 2014

Well, I believe that if we want to changewhat our cities look like,then we really have to changethe decision-making processesthat have given us the results that we have right now.We need a participation revolution,and we need it fast.

The greatest threat to our planet is the belief that someone else will save it.

Robert Swan, polar explorer