Principles of Philosophy (Descartes)

Principles of Philosophy (Principia philosophiae) was written in Latin by René Descartes 1644. Descartes hoped to replace Aristotle's philosophy and scholastic philosophy at universities.

A French translation, Principes de philosophie, by Claude Picot, under the supervision of Descartes, appeared in 1647 with a letter-preface to Queen Christina of Sweden.

Principia philosophiae is divided into four parts:

1. The principles of the human knowledge
2. The principles of the material things
3. An objective study of the composition of the universe
4. A study of the structure of the land.