[pbhjpbhj]

You might take it that way, but are you sure that's correct. The derivation/etymology of cogito appears to imply active thought, as does penser (I've always assumed Descartes conceived it in French, and translated, but I confess I don't know which natural language - if any - his mind was using). As opposed to merely passively regarding the World. The epigram's context is "application of reason", at least.

[melon_madness]

I'm pretty sure when Decartes said that, he meant that that's the only thing we know for sure to be true, since everything else could be a hallucination. He wasn't making an argument for cognitive enhancement... was he?