Rich Dad's Guide to Investing
by Robert Kiyosaki
Investment basic rule number three is to keep your ordinary earned income secure by purchasing a security you hope converts your earned income into passive income or portfolio income.
Investment basic rule number one is to always know what kind of income you are working for.
“Think of it more like buying time than saving time. The moment you begin to think of time as precious and that it has a price, the richer you will become.”