“The state will be able to wither away completely when society adopts the rule: "From each according to his ability, to each according to his needs", i.e., when people have become so accustomed to observing the fundamental rules of social intercourse and when their labor has become so productive that they will voluntarily work according to their ability.”
Vladimir Lenin
“A great civilization is not conquered from without, until it has destroyed itself from within. The essential causes of Rome's decline lay in her people, her morals, her class struggle, her failing trade, her bureaucratic despotism, her stifling taxes, her consuming wars.”
Will Durant