John Henry Newman

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How a religion that claims to hold an unchanging truth can also, visibly, change was the single problem John Henry Newman spent his life on, and the one for which he is still read. He was an English theologian and churchman whose career split in two over it: a leader of the Oxford Movement within the Church of England, and, after 1845, a convert to Roman Catholicism who was eventually made a cardinal.

He was born in London in 1801 and ordained in the Church of England, becoming a fellow of Oriel College, Oxford, and vicar of the university church. In the 1830s he was the most prominent voice of the Oxford Movement, a campaign to recover the Church of England’s Catholic inheritance against what its members saw as a slide into mere establishment religion. Newman wrote many of the Tracts for the Times that gave the movement its other name, Tractarianism; the last of them, arguing that the Church’s defining articles could be read in a Catholic sense, provoked enough outrage that he withdrew from public controversy. Years of study of the early Church Fathers had by then convinced him that the Roman communion, not the Anglican, stood in continuity with the ancient Church. He was received into the Roman Catholic Church in 1845, a decision that cost him most of his Oxford world.

His most influential argument was published that same year. In An Essay on the Development of Christian Doctrine he proposed that doctrine is not a fixed deposit repeated unchanged but a living idea that unfolds over centuries — and that genuine development could be told from corruption by a set of tests. The claim let him hold that later Catholic teaching was already implicit in the faith of the Apostles, and it has shaped Christian theology, Catholic and otherwise, ever since. Two later works carried his name further: the Apologia Pro Vita Sua (1864), a memoir written to answer a charge that he had been dishonest about his convictions, which became a classic of English prose; and An Essay in Aid of a Grammar of Assent (1870), on how people come to hold religious belief with certainty on grounds that fall short of formal proof.

Newman was named a cardinal in 1879, late in a life that had often left him at odds with authorities on both sides. The Roman Catholic Church canonized him as a saint in 2019. Among believers he is venerated; among historians he is studied as one of the nineteenth century’s subtlest religious minds; the question he pressed — whether a tradition can change and still be the same tradition — outlived the particular church quarrels that forced him to ask it.

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