We must infer that all things are produced more plentifully and easily and of a better quality when one man does one thing which is natural to him and does it at the right time, and leaves other things.
PlatoWhen there is an income tax, the just man will pay more and the unjust less on the same amount of income.
PlatoThe form of law which I propose would be as follows: In a state which is desirous of being saved from the greatest of all plagues-not faction, but rather distraction-there should exist among the citizens neither extreme poverty nor, again, excessive wealth, for both are productive of great evil . . . Now the legislator should determine what is to be the limit of poverty or of wealth.
Plato