Now I will tell thee an unusual truth about men and sons of men. It is this: That what each of us calls our "necessary expenses" will always grow to equal our incomes unless we protest to the contrary.
Confuse not the necessary expenses with thy desires. . . . All men are burdened with more desires than they can gratify. . . Select those that are necessary and others that are possible through the expenditure of nine-tenths of thy income. Cross out the rest and consider them but a part of that great multitude of desires that must go unsatisfied and regret them not.
-George S. Clason, The Richest Man In Babylon