Tom's Learning Notes

On the Heavens (Greek: Περὶ οὐρανοῦ, Latin: De Caelo) is Aristotle's chief work on cosmology and astronomy. It remained a profound influence on later astronomical thinking until the early modern period.

On the Heavens at Amazon.com, .uk, .fr, .de, .ca.

Free online texts

Internet Archive: De Caelo, translated by J.L. Stocks (1922). Multiple formats.

Internet Classics Archive: On The Heavens, translated by J.L. Stocks (1922). HTML and TXT files.

Sacred-texts.com: On The Heavens, translated by J.L. Stocks (1922). HTML text.

University of Adelaide: On the Heavens, translated by J.L. Stocks. Multiple formats.

Wikisource: Greek text. English text, translated by J.L. Stocks. Multiple formats.

Other Resources

History of Philosophy without any gaps: Let's Get Physical: Aristotle's Natural Philosophy - podcast by philosopher Peter Adamson.

History of Philosophy without any gaps: Richard Sorabji on Time and Eternity in Aristotle - podcast by philosopher Peter Adamson.

History of Philosophy without any gaps: God Only Knows: Aristotle on Mind and God - podcast by philosopher Peter Adamson.

Librivox: On the Heavens - public domain audiobook.

Stanford Encyclopedia of Philosophy: Aristotle's Natural Philosophy, by Istvan Bodnar.

Wikipedia: On the Heavens

The Great Conversation: Further reading at Tom's Learning Notes

Plato: Timaeus - a key dialogue on cosmology.

Ancient Greek resources: Learn to read Greek classics in the original.

The Physics (Greek: Φυσικὴ ἀκρόασις Phusike akroasis; Latin: Physica, or Physicae Auscultationes)  is a treatise by Aristotle in which he sets out the fundamentals of his philosophy of nature. For Aristotle, a thing's nature (Greek physis) is the source of its motion, something he analyses in terms of his famous theory of the four causes (material, efficient, formal, and final).

Aristotle's Physics at Amazon.com, .uk, .fr, .de, .ca.

Free online texts

Boston University: Physics, translated by R. P. Hardie and R. K. Gaye. HTML format.

Greektexts.com: Physics. HTML format.

Internet Archive: Works of Aristotle Volume II. Translated into English under the editorship of W.D. Ross (1908). Multiple formats.

Internet Archive: Aristotelis Opera. Greek Bekker edition (1837). Multiple formats.

Internet Classics Archive: Physics, translated by R. P. Hardie and R. K. Gaye. HTML and TXT formats.

Remacle.org: Physique d'Aristote, translated into French by Barthélémy Saint-Hilaire (1861).

Other Resources

Dominican House of Studies: Commentary on Aristotle's Physics, by Thomas Aquinas.

History of Philosophy without any gaps: Form and Function: Aristotle's Four Causes - podcast by philosopher Peter Adamson.

History of Philosophy without any gaps: Let's Get Physical: Aristotle's Natural Philosophy - podcast by philosopher Peter Adamson.

History of Philosophy without any gaps: Richard Sorabji on Time and Eternity in Aristotle - podcast by philosopher Peter Adamson.

 History of Philosophy without any gaps: God Only Knows: Aristotle on Mind and God - podcast by philosopher Peter Adamson.

Internet Encyclopedia of Philosophy: Aristotle - Motion and its Place in Nature, by Joe Sachs.

Librivox: Physics - public domain audiobook.

Stanford Encyclopedia of Philosophy: Aristotle's Natural Philosophy, by Istvan Bodnar.

Wikipedia: Physics

Aristotle's Physics at Amazon.com, .uk, .fr, .de, .ca.

The Great Conversation: Further reading at Tom's Learning Notes.

Aristotle: On the Heavens.

Plato: The Timaeus - A key dialogue for Plato's natural philosophy.

Ancient Greek resources: Learn to read Greek classics in the original.

The Feynman Lectures on Physics

Khan Academy: Physics

Wikipedia: Physics