" Strangely, contributions to the party came in from beyond the proceeds of extortion and robbery. Upper-class citizens (Marx’s “bourgeoisie”) often opened their wallets to the revolutionaries: doctors, lawyers, merchants, and factory owners who secretly hated the czar, as well as less well-off sympathizers including shopkeepers, academics, students, and the clergy. Lenin characterized these people as “useful idiots”; come the revolution, most of them would be killed or exiled to the slave mines of Siberia. "

― Winston Groom , The Allies: Churchill, Roosevelt, Stalin, and the Unlikely Alliance That Won World War II