" If a flock of chickens is without water on a hot day, and all you have to do to prevent them from dying slowly and painfully is turn on a tap, you ought to turn it on. If to do so you have to walk a few extra steps in shoes that pinch your little toe, you ought to walk those few extra steps. "

― Peter Singer , The Most Good You Can Do: How Effective Altruism Is Changing Ideas About Living Ethically