My interest is not data, it's the world. And part of world development you can see in numbers. Others, like human rights, empowerment of women, it's very difficult to measure in numbers.

Thank you industrialization. Thank you steel mill. Thank you power station. And thank you chemical processing industry that gave us time to read books.

Avoid war, because that always pushes human beings backward.

Religion has very little to do with the number of babies per woman. All the religions in the world are fully [able] to maintain their values and adapt to this new world.

I have a motto: it's never too late to give up. It's never too late to give up what you are doing, and start doing what you realise you love.

Most people are not updated. 50 years ago 1 in 5 children died before age 5, now only 1 in 20!

The number of children is not growing any longer in the world. We are still debating peak oil, but we have definitely reached peak child.