Make money. Create value

Investment books teach you how to stay rich, but not how to become rich. True wealth comes from creating value for society. Even "passive" income requires an investment of time and energy in the initial stages to produce value.

Passive income is a form of earning money in which a person does not directly exchange time for money.

Instead of a linear dependency, as in a regular job, a person only works once or for a certain period of time and then earns income through "inertia".