Ian is a historian, a journalist, and an old friend. He’s currently the Paul Williams Professor of Human Rights and Journalism at Bard College. He served as the editor of The New York Review of Books and as foreign editor of The Spectator, where he still writes. He has written many books, including Theater of Cruelty, The Churchill Complex, and The Collaborators — which we discussed on the Dishcast in 2023. This week we’re covering his latest book, Spinoza: Freedom’s Messiah.

For two clips of our convo — on cancel culture in the 17th century, and how Western liberalism is dying today — see our YouTube page.

Other topics: Ian’s Dutch and Jewish roots; the Golden Age of Amsterdam; its central role in finance and trade; when Holland was a republic surrounded by monarchies; the Quakers; Descartes; Hobbes; how sectarianism is the greatest danger to free thought; religious zealots; Cromwell; Voltaire; Locke; the asceticism of Spinoza; his practical skill with glasswork; the religious dissents he published anonymously; his excommunication; his lack of lovers but plentiful friends; how most of his published work was posthumous; his death at 44; the French philosophers of the Enlightenment shaped by Spinoza; how he inspired Marx and Freud; why he admired Jesus; Zionism; universalism; Socrates; Strauss’ Persecution and the Art of Writing; Puritanism through today; trans activists as gnostic; Judith Butler; the right-wing populist surge in Europe; mass migration; Brexit and the Tory fuckup; Trump’s near-alliance with Russia; DOGE; the rising tribalism of today; and thinking clearly as the secret to happiness.

Browse the Dishcast archive for an episode you might enjoy (the first 102 are free in their entirety — subscribe to get everything else). Coming up: Evan Wolfson on the history of marriage equality, Nick Denton on China and AI, Francis Collins on faith and science, Michael Lewis on government service, Douglas Murray on Israel and Gaza, and Mike White of White Lotus fame. Please send any guest recs, dissents, and other comments to dish@andrewsullivan.com.