“ and as I observed that this truth, I think, therefore I am (COGITO ERGO SUM), was so certain and of such evidence that no ground of doubt, however extravagant, could be alleged by the sceptics capable of shaking it, I concluded that I might, without scruple, accept it as the first principle of the philosophy of which I was in search. ”
René Descartes, Discourse on the Method (1637). copy citation
| Author | René Descartes |
|---|---|
| Source | Discourse on the Method |
| Topic | doubt truth philosophy |
| Date | 1637 |
| Language | English |
| Reference | |
| Note | |
| Weblink | http://www.gutenberg.org/files/59/59-h/59-h.htm |














