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.

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.

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.

Gone is the day where you work at a job for thirty years and retire. Millennials jump around and switch careers. I think it's important for CEOs to highlight career mobility within a company, so that employees don't get bored and continue to be stimulated.

Money is becoming increasingly plastic and digital. If there is a major disaster, let's say an asteroid strike, we'll go back to trading meats and furs. We won't need an abstraction, a dollar bill, but real tangible goods to survive.

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.

On a biological level, the brain registers money as something valuable - even a dollar bill which has no intrinsic value, it's just paper.