pan-GLOSS-ee-un (adjective) : marked by the view that all is for the best in this best of possible worlds : excessively optimistic.

"Sarah is a cheerful young woman with a Panglossian habit of looking at the world through rose-colored glasses."

Does this remind you a little of the following? "Gibberations galore from a regular down-to-earth kind of guy who is constantly pursuing a balanced life in the best of all possible worlds..." The motto and driving force behind this future-famous weblog.