Sometimes very small investments can release enormous, infinite potential that exists in all of us.

We see very, very high rates of C-sections, Cesarean sections, in India. Lots of reasons for it, high levels of malnutrition have meant that women have very small pelvic areas often, so if they have larger babies, it's very hard to deliver.

Where micro-finance focuses on small loans to individual, low-income women, think of Acumen Fund more like a venture capital fund.

Many business leaders are seeing the relationship between long term success and sustainability, and that's very heartening.

The poor don't live in functional market economies as the rest of us do, but in political economies where corruption and broken systems extend from local government to moneylenders.

Monsters will always exist. There's one inside each of us. But an angel lives there, too. There is no more important agenda than figuring out how to slay one and nurture the other.