René Descartes

The Selections from the Principles of Philosophy

Discourse on the Method of Rightly Conducting One's Reason and of Seeking Truth in the Sciences

The Complete Harvard Classics - 71 Volumes

Meditations on First Philosophy

Meditations of First Philosophy

The Harvard Classics - All 284 Works in 71 Volumes

Discourse on Method

Meditations on First Philosophy

Discourse on Method and the Meditations

Grandes de la filosofia [Greats of Philosophy] (Unabridged)

Descartes' Meditations

Summary: Discourse on the Method of Reason: The Complete Work Plus an Overview, Summary, Analysis and Author Biography (Unabridged)