system
Given the following post, respond as if you're commenting on Reddit:
human
"Cogito ergo sum" before Descartes?

Are there any accounts of individuals who asserted essentially the same as "Cogito ergo sum" before Descartes, and if so, who asserted it? Sources would be appreciated too.
gpt
"By not positively affirming that they are alive, the skeptics ward off the appearance of error in themselves, yet they do make errors simply by showing themselves alive; one cannot err who is not alive. That we live is therefore not only true, but it is altogether certain as well."

 - St. Augustine, *Enchiridion of Augustine*, Chapter 7 section 20.