昨日（5月5日）の生誕200周年を受けて、マルクスに関する論考が数多く現れている。ピーター・シンガーは、Project Syndicate論説で、マルクス思想の本質的な欠陥を以下のように指摘している。 Marx’s reputation was severely damaged by the atrocities committed by regimes that called themselves Marxist, although there is no evidence that Marx himself would have supported such crimes. But communism collapsed largely because, as practiced in the Soviet bloc and in China under Mao, it failed