Watch money. Money is the barometer of a society's virtue. When you see that trading is done, not by consent, but by compulsion — when you see that in order to produce, you need to obtain permission from men who produce nothing — when you see that money is flowing to those who deal, not in goods, but in favors — when you see that men get richer by graft and by pull than by work, and your laws don't protect you against them, but protect them against you — when you see corruption being rewarded and honesty becoming a self-sacrifice — you may know that your society is doomed. Money is so noble a medium that is does not compete with guns and it does not make terms with brutality. It will not permit a country to survive as half-property, half-loot.
We are fast approaching the stage of the ultimate inversion: the stage where the government is free to do anything it pleases, while the citizens may act only by permission; which is the stage of the darkest periods of human history, the stage of rule by brute force.