I would like to put a twist on Descartes' famous phrase, "Cogito, ergo sum".

Effectively I want to say, "I am... I think?", raising the question of whether the existence we perceive with our senses is the truth of reality, and in exploring that: whether Descartes' position is still a valid argument.

So would it be correct to say "Ego sum... cogito?" and if not, how would you phrase it in Latin?

  • 2
    Welcome to the site! I think your translation would be understandable, and the resemblance to the original justifies the possible lack of grammatical correctness. I'm not sure if cogito is the verb to express this kind of belief (I'd use puto or credo instead). In Latin you usually express beliefs with the infinitive: puto me esse
    – Rafael
    Mar 18, 2020 at 19:23

1 Answer 1


Cogito, ergo sum – quod sciam (“...as far as I know,” made famous by Winnie ille Pu).

  • I guess that's as close as it gets, thanks (doesn't that mean I KNOW THAT, though?). Anyway, I'm marking as answered until something better comes along :-) Apr 13, 2021 at 13:46
  • Dear Riegardt, ‘quod sciam’ means something like “as far as I know” (quod sciam). Vale.
    – Batavulus
    Apr 13, 2021 at 14:16

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