I used to think the world was broken down by tribes. Then I thought it was broken down by rich and poor. Then I thought it was broken down by stupid and smart. But I know now that it is broken down by people who are alive and people who are dead.

The more you read, the more you will see that the same stories are told over and over again, just with different characters and settings.

Development economics is ultimately about improving people's lives.

To rapidly reveal the true character of a person you just met， move them onto an abysmally slow internet connection. Observe.