While we somehow understand revenge on an intuitive level between individuals, I do suspect that companies, assuming that people are rational, completely miss and underestimate the motivation people have for revenge.

But because human being tend to focus on short-term benefits and our own immediate needs, such tragedies of the commons occur frequently .

When it comes to the mental world, when we design things like health care and retirement and stock markets, we somehow forget the idea that we are limited. I think that if we understood our cognitive limitations in the same way that we understand our physical limitations … we could design a better world.

The more cashless our society becomes, the more our moral compass slips.

When we think about labor, we usually think about motivation and payment as the same thing, but the reality is that we should probably add all kinds of things to it - meaning, creation, challenges, ownership, identity, pride, etc.

The things that motivate us are to help other people, to feel that we're useful, to feel that we're getting better, to feel that we are kind of living to our potential, to get a sense of meaning. All of those things are positive.

That’s a lesson we can all learn: the more we have, the more we want. And the only cure is to break the cycle of relativity.