[Shameless plug] For a philosophical interpretation on the differences between OOP and FP, you may enjoy my gist: Descartes, Berkeley and Functional Reactive Programming
It's actually a common misquote of Descartes to say "I think therefore I am." A more proper translation is "I think, I am" which has significant implications for his philosophy.
As I understand it, this isn't a misquote/mistranslation at all. He said "I think, I am" and "I think therefore I am" in different works exploring the same topics, without a lot of distinction between them.
It is not a misquotation. In Meditations on First Philosophy what he says translates to "I think, I am" but he'd used "Cogito ergo sum" (I think, therefore I am) in previous works.