Post History
First of all, you have a tense disagreement: "we had undergone" is past, so you need "confused" and "made." A few variants: ...made us re-experience Descartes's proclamation: "I think, therefor...
Answer
#4: Attribution notice removed
Source: https://writers.stackexchange.com/a/5389 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/
#3: Attribution notice added
Source: https://writers.stackexchange.com/a/5389 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/
#2: Initial revision
First of all, you have a tense disagreement: "we had undergone" is past, so you need "confused" and "made." A few variants: - ...made us re-experience Descartes's proclamation: "I think, therefore I am." - ...made us re-experience Descartes's proclamation: _Cogito, ergo sum._ We thought, therefore we were. - ...made us cling to Descartes to assure ourselves that we were indeed real: "I think, therefore I am."