Scarcity, Survival, Wealth, and Ambition

I can't stop thinking about this equation from Derek Sivers: Wealth = Have ÷ Want If you have nothing, then focus on having some. Once you have some, the easiest way to increase your wealth is to decrease your needs. Have 10 but want 100? You are poor. Have 10 but only want 5? You are wealthy. Have 10 but are happy with 1? You are very wealthy.