Harvard political philosopher whose 1982 book Liberalism and the Limits of Justice put the word "communitarian" into wide circulation as a critique of John Rawls-style liberalism. Sandel argued that Rawls's "original position" presupposes an "unencumbered self" — a chooser prior to and independent of all its commitments, attachments, and communal memberships. But selves so thinly conceived cannot have the depth of moral life that actually matters to people: our identities are constituted, at least in part, by attachments we have not chosen (family, nation, religious community, tradition). A political philosophy that screens these out in the name of neutrality cannot help but distort what it is theorizing.
Sandel's subsequent work is more public-facing than most academic political philosophy. Democracy's Discontent (1996) recovered an older "civic republican" strand in American political thought, against the procedural liberalism he thinks has supplanted it. What Money Can't Buy (2012) is a popular argument that markets have crept into domains — friendship, civic life, medical care, education — where their logic corrodes rather than serves. The Tyranny of Merit (2020) criticized the meritocratic self-image of advanced liberal societies, arguing that it produces hubris among the winners, humiliation among the losers, and populist backlash as the predictable result.
His Harvard "Justice" course, delivered for decades and released online, introduced hundreds of thousands of viewers to political philosophy as a living argument — a rare public-facing success for the discipline.