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The Library

Forty Centuries of Christian Writing

1774 works catalogued century by century, from the literature the Bible was written among to the present — each with a note on what it is, why it lasted, and where to read it.

1401–1500

The Fifteenth Century

6 works

1439

Greek

The Oration on Union

Basilios Bessarion · 1403–1472

An argument to the Greek delegation at Florence that the Latin and Greek fathers say the same thing about the Spirit in different words, and that union is therefore honest.

Byzantine · OrationRead elsewhere

1438–1444

Greek

The Anti-Union Writings

Mark of Ephesus · 1392–1444

The encyclicals and treatises of the one Greek bishop at Florence who refused to sign the union, on the filioque, purgatory, and the impossibility of agreement by formula.

Byzantine · PolemicRead elsewhere

c. 1440–1454

Latin

Moral Summa

Summa Theologica Moralis

Antoninus of Florence · 1389–1459

Moral theology for a commercial city, treating banking, exchange, partnership, wages, and the just price with the detail of someone who heard merchants' confessions.

Dominican · EthicsRead elsewhere

1474

Latin

On the Christian Religion

Marsilio Ficino · 1433–1499

An argument that religion is natural to humanity and that Christianity perfects what the Platonists and the ancient sages half-saw.

Western · ApologyRead elsewhere

1494

Italian

The Sermons on Haggai

Girolamo Savonarola · 1452–1498

Advent sermons preached as the French army entered Italy, reading the prophet's call to rebuild the temple as a summons to remake Florence as a Christian republic.

Dominican · HomiliesHaggaiRead elsewhere

1497

Latin

The Triumph of the Cross

Girolamo Savonarola · 1452–1498

A defence of Christianity by reason alone, arranged around the image of a triumphal chariot bearing Christ, written at the height of the author's power in Florence.

Dominican · ApologyRead elsewhere