Albert Murray's The Omni-Americans is the most valuable non-business book because it discusses how you have to draw upon everyone's creativity. America is a mash-up of cultures and traditions, and great businesses know how to tap the strengths of all their employees, whatever their background may be.

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.

In some cultures, when you give someone a gift, it's expected that they will pass it on. This seems like a peculiar practice in the West, but in many other societies, a gift has a spirit. If you try to possess the gift, you remove its spirit as a gift.

It is important to understand that the most important currency is social debt. Doing things for others. In order to get, you have to give.

The oldest and most important currency is debt.

In essence, money gives us the calories we need to survive. Over time, we became aware that exchange and cooperation increase our chances for survival. Eventually we create tools to facilitate trade. One of these tools is called money.

Researchers have found that identical twins who have been separated for long periods of time actually invest in a similar manner. Biology really does affect how we spend money.