Rene Descartes at the restaurant Rene Descartes, takes his date to a fancy restaurant. The waiter hands them the wine list, and his date suggests they order the most expensive bottle on the list. “I think not!” exclaims an indignant Descartes, and… Complete the Anecdote: *POOF* he disappears. Cogito, ergo sum - I think, therefore I am.