that when given the opportunity, many honest people will cheat.

Imagine you owe on five credit cards, you owe five debts. So which debt should you pay first? And the answer is very simple: You should pay the one with the highest interest rate first. But that's not what people do.

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

People are irrational - and predictably so.

Why would you take money out of your paycheck at the beginning of the month when you don't know how much money you'll need?

individuals are honest only to the extent that suits them (including their desire to please others)

Money is all about opportunity cost. Every time you spend on something, that's something you can't spend on something else.