Purely altruistic behavior is pretty much impossible because of the selfish pleasures we derive from it.

We are selfish when we are exclusively or predominantly concerned with the good for ourselves. We are altruistic when we are exclusively or predominantly concerned with the good of others.

In Angola, I visited 'HeroRats' that have been trained to sniff out land mines (and, in some countries, diagnose tuberculosis). In a day, they can clear 20 times as much of a minefield as a human, and they work for bananas!

It's maddening in my travels to watch children dying simply because they were born in the wrong place at the wrong time.

Things that happen every day are, frankly, what we in the news business aren't good at covering because there is no one day in which they are news.

Why are fanatics so terrified of girls' education? Because there's no force more powerful to transform a society. The greatest threat to extremism isn't drones firing missiles, but girls reading books.