"I don’t love numbers. I am a huge, huge fan of data, but I don’t love it. It has its limits. I love data only when it helps me to understand the reality behind the numbers, i.e., people’s lives. In my research, I have needed the data to test my hypotheses, but the hypotheses themselves often emerged from talking to, listening to, and observing people. Though we absolutely need numbers to understand the world, we should be highly skeptical about conclusions derived purely from number crunching."