# Principles of Philosophy

- Author: [Rene Descartes](https://www.leafyquotes.com/rene-descartes.md)
- Quotes: 1
- Book page: https://www.leafyquotes.com/rene-descartes/principles-of-philosophy

## Quotes

> In order to seek truth, it is necessary once in the course of our life, to doubt, as far as possible, of all things.

Topics: [truth](https://www.leafyquotes.com/topics/truth.md), [doubt](https://www.leafyquotes.com/topics/doubt.md)