Chapter 1:
What's money?
Money is trust. Money means you trust the men or entity who print the papers and
believe later they will receive your papers and
give you the equal value commodity you want.
Chapter 2:
What's bond?
It's still trust. And it also means borrowing money from future.
规模和 diversification of risk
Chapter 3:
Stock
There're only two emotions in stock market: greed and fear.