Brill authors Leen Spruit and Pina Totaro discovered the original manuscript of Spinoza's "Ethica" in the Vatican library. This spectacular discovery attracted a lot of media attention. This edition will be published in Brill's Texts and Sources on Intellectual History (BSIH) in August.

The Vatican codex, which contains the complete text of Spinoza’s Ethics, is the only surviving manuscript of this work and constitutes a document of great importance, as it predates the publication of the Opera Posthuma, which appeared in the first months of 1678.