All organisms rely on exchange. They form symbiotic partnerships in order to obtain the energy that they need to survive. Energy is the currency of nature.

For the last several decades, there was a prevailing belief among traditional economists that the markets were rational and self-correcting. Alan Greenspan advocated this view. But the 2008 financial crisis showed that this view is incorrect, and Greenspan eventually admitted as much.

Money is really like blood. You need it to live but it isn't the point of life.

When you go to a Japense wedding, make sure that you tie the ribbon on the present tightly because if you don't, you may imply that you don't think the marriage will last.

Look at Google. They are re-organizing their businesses ,even renaming it with Alphabet, so they can be bolder and make strategic mistakes and then learn from them. But most companies aren't Google in that they make incremental changes and don't go for the moon shot.

Persistence. Change doesn't happen overnight. You have to stay with it. Rosa Parks helped start the Civil Rights movement in earnest in 1955. Then it was nearly a decade until the Civil Rights Act was passed.

I think the money for the solutions for global poverty is on Wall Street. Wall Street allocates capital. And we need to get capital to the ideas that are successful, whether it's microfinance, whether it's through financial literacy programs, Wall Street can be the engine that makes capital get to the people who need it.