1. Before the Christianization of Pyrrhonism: Jansenism faces Sceptical Fideism -- 1.1. The Pelagian and the Manichean Threats -- 1.2. Michel de Montaigne -- 1.3. Pierre Charron -- 1.4. Saint-Cyran versus Garasse on Charron -- 1.5. Franรงois De La Mothe Le Vayer -- 2. Pascalโ{128}{153}s Christianization of Pyrrhonism -- 2.1. Conversation with Sacy about Epictetus and Montaigne -- 2.2. Undoing Ataraxia -- 2.3. Undoing Intellectual Integrity -- 3. Kierkegaardโ{128}{153}s Christianization of Pyrrhonism -- 3.1. In Search of Genuine Sceptics: The Period before Authorship -- 3.2. Abraham and the Sceptics: The Preface to Fear and Trembling -- 3.3. The Christians and the Sceptics: The Works by Johannes Climacus -- 3.4. Pascal and Kierkegaard -- 4. After the Christianization of Pyrrhonism: Shestovโ{128}{153}s Irrationalism -- 4.1. Shestovโ{128}{153}s Neo-Kantianism -- 4.2. Scepticism, Belief, and the Doctrine of the Fall -- 4.3. Shestov on Pascal -- 4.4. Shestov on Kierkegaard -- Conclusion