Cosmology

2 - Infinity and Beyond: Anaximander and Anaximenes

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Peter discusses two very early Greek philosophers, both from Miletus: Anaximander and Anaximenes.

7 - The Road Less Traveled: Parmenides

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Peter  discusses the "father of metaphysics," Parmenides, and his argument that all being is one.

 
30 - A Likely Story: Plato's Timaeus

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Peter looks at Plato's Timaeus, focusing on the divine craftsman or demiurge, the receptacle, and the geometrical atomism of Plato's elemental theory.

40 - Let's Get Physical: Aristotle's Natural Philosophy

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Before Isaac Newton (and Olivia Newton John), there was Aristotle. Peter looks at his Physics, focusing on the notions of actuality and potentiality and how they help to explain such concepts as time and motion.

55 - The Constant Gardener: Epicurus and his Principles

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Peter begins to examine the philosophy of Epicurus, focusing on his empiricist theory of knowledge and his atomic physics.

62 - We Didn’t Start the Fire: the Stoics on Nature

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Peter looks at the Stoic idea of god, a providential fire that pervades nature, and considers their idea of a deterministic and eternally recurring cosmos.

78 - Middle Men: the Platonic Revival

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Pioneering thinkers Eudorus, Alcinous, and Numenius fuse Pythagoreanism with Platonism and pave the way for Plotinus.

103 - Fall and Rise: Origen

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Origen, greatest of the Greek Church Fathers, sets out a stunning theory of human redemption as he marries philosophical rigor to theological speculation.

126 - High Five: al-Rāzī

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The doctor and philosopher Abū Bakr al-Rāzī sets out a daring philosophical theory involving five eternal principles: God, soul, matter, time and place.

129 - The Second Master: al-Fārābī

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Peter begins to look at the systematic rethinking of Hellenic philosophy offered by al-Fārābī, focusing on his logic and metaphysics.

155 - Matter over Mind: Ibn Gabirol

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Neoplatonism returns in Ibn Gabirol (known in Latin as Avicebron), who controversially holds that everything apart from God has both matter and form.

165 - Neither the Time Nor the Place: Hasdai Crescas

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Ḥasdai Crescas shows Aristotelian physics who’s boss, by defending alternative conceptions of time, place and infinity.

199. Much Ado About Nothing: Eriugena's Periphyseon

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Eriugena delves into the Greek tradition to produce his masterpiece of metaphysics and theology, the Periphyseon.

213. On the Shoulders of Giants: Philosophy at Chartres

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The controversial role of Chartres in the philosophical Renaissance of the twelfth century.

27. The Theory of Evolution: Īśvarakṛṣṇa’s Sāṃkhya-kārikā

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The oldest treatise of Sāṃkhya enumerates the principles of the cosmos and of the human mind.

280. Get to the Point: Fourteenth Century Physics

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Ockham, Buridan, Oresme and Francis of Marchia explore cosmology, atomism, and the impetus involved in motion.

289. A Wing and a Prayer: Angels in Medieval Philosophy

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Be surprised by how many philosophical problems arise in connection with angels (how many can dance on the head of a pin is not one of them).

3. Fertile Ground: Philosophy in Ancient Mesopotamia

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Do the cuneiform writings of Babylonian culture show that it had its own philosophy?

4. Pyramid Schemes: Philosophy in Ancient Egypt

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Ancient Egyptian figures and writings including the Pyramid Texts, Imhotep, and the "first monotheist" Akhenaten reflect on the nature of things and questions of morality.

25. Wise Guys: Sage Philosophy

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Henry Odera Oruka’s new method for exploring philosophy in Africa, based on interviews with wise individuals.

356. I’d Like to Thank the Lyceum: Aristotle in Renaissance Italy

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Aristotle’s works are edited, printed, and translated, leading to new assessments of his thought among both humanists and scholastics.

365. Spirits in the Material World: Telesio and Campanella on Nature

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Was the anti-Aristotelian natural philosophy of Bernardino Telesio and Tommaso Campanella the first modern physical theory?

393. The World Doesn’t Revolve Around You: Copernicus

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How revolutionary was the Copernican Revolution?

394. Best of Both Worlds: Tycho Brahe

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Responses to Copernicus in the 16th century, culminating with the master of astral observation Tycho Brahe.

395. Music of the Spheres: Johannes Kepler

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Kepler combines Brahe's observations, Copernicus' astronomy, and Platonist metaphysics.

432. If This Be Magic, Let It Be an Art: John Dee

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Science, intrigue, exploration, angelic seances! It's the life and thought of Elizabethan mathematician and magician John Dee.