1001Philosophers

Pierre d'Ailly 1351 – 1420

Pierre d'Ailly (1351 – 1420) was a French philosopher of the Medieval era, associated with Medieval Philosophy, Scholasticism, and Christian Philosophy.

Pierre d'Ailly was a French scholastic theologian, cardinal, and statesman of the Church and one of the leading figures of the conciliarist movement that resolved the Western Schism. After studies and teaching at Paris and a long career as bishop of Le Puy and then Cambrai, he played a central role at the Councils of Pisa and Constance, where the schism was ended in 1417. His Imago Mundi, a synthetic compendium of medieval astronomy and geography, was carried by Christopher Columbus on his voyages, and his treatises on the authority of the general council shaped late medieval and early Reformation political ecclesiology.

Key facts

Nationality
French
Era
Medieval
Movements
Medieval Philosophy, Scholasticism, Christian Philosophy

Selected quotes

  • Attributed to Pierre d'Ailly:

    “The general council, lawfully gathered, is greater than the pope.”

  • Attributed to Pierre d'Ailly:

    “Reform begins at the head and descends to the members.”

  • Attributed to Pierre d'Ailly:

    “Astronomy serves theology when it teaches the order of creation.”

  • Attributed to Pierre d'Ailly:

    “What is uncertain in faith should be left to councils, not to private opinion.”

  • Attributed to Pierre d'Ailly:

    “The world is round, and its parts may yet be discovered.”

Pierre d'Ailly by topic

Frequently asked about Pierre d'Ailly

When did Pierre d'Ailly live?
Pierre d'Ailly was born in 1351 and died in 1420.
Where was Pierre d'Ailly from?
Pierre d'Ailly was a French philosopher of the Medieval era.
What philosophical movements is Pierre d'Ailly associated with?
Pierre d'Ailly was associated with Medieval Philosophy, Scholasticism, and Christian Philosophy.
What was Pierre d'Ailly known for?
Pierre d'Ailly was a French scholastic theologian, cardinal, and statesman of the Church and one of the leading figures of the conciliarist movement that resolved the Western Schism.
How many quotes are attributed to Pierre d'Ailly?
There are 5 attributed quotations from Pierre d'Ailly in the 1001Philosophers collection, organized by topic.