Garrison Keillor
defines culture by what songs we know in common—camp songs, religious hymns, the big hits of the year we were 15. A more academic definition of culture is the mental programming for processing information that people share in common. Shared mind-sets may judge what size pay differential is fair. In ancient Greece, Plato declared that societies are strongest when the richest earned a maximum of four times the lowest pay. Aristotle favored a five-times limit. In 1942 President Franklin Roosevelt proposed a maximum wage: a 100 percent tax on all income above 10 times the minimum wage.