I think therefore I am?

Hmm..based on this topic..it's totally reminds me of what Pn Suzy have said ~ Cogito ergo sum..it's an Italian words. This Italian statement is really familiar with this guy,Rene Descartes~a well-known Italian philosopher.

Descartes was trying to counter the extreme scepticism of his time, questioning if people knew anything for sure, or whether anything existed at all.
He started with the premise that perhaps we have been fooled by a grand Devil into believing that we exist, where perhaps we are but things flying around in the mind of the Devil.
This is a little like the film the Matrix, when all the exciting things happened like real, but actually the people existed only in the dream of a giant computer.