On Dreams (Greek: ΠΕΡΙ ΕΝΥΠΝΙΩΝ, Latin: DE INSOMNIIS) discusses sensation when awake and dreaming. Written by Aristotle. Translated by William Alexander Hammond. Painting: Portrait of Louise-Antoinette Feuardent by Jean-François Millet, 1841. Scanned by The J. Paul Getty Museum.

On Memory and Recollection by Aristotle

Unabridged philosophy audiobooks including writing by Plato (Parmenides), Aristotle (Economics) and Cicero (On Moral Duties). Topics discussed include ethics, justice, law, logic, metaphysics, God, happiness, love and beauty. Each book has been streamlined by merging separate LibriVox recordings into a single seamless whole with no interruptions. Painting: La Perle et la vague by Paul-Jacques-Aimé Baudry.