The tenth
Clason's rule is the oldest in the finance shelf: a tenth of everything you earn is not yours to spend. Automated on payday, it turns income into ownership without willpower.
Debt is a leash
Ramsey's method is emotional engineering: kill the smallest debt first so momentum, not math, carries you. Debt does not merely cost interest — it decides which jobs you can refuse.
Temperament beats intelligence
Housel and Collins land on the same point: broad, boring, uninterrupted investing beats clever timing. Stanley adds that most wealthy men look ordinary because display and wealth compete for the same dollar.