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1. the doctrine of the ultimate triumph of good over evil
2. the philosophical doctrine that this is the best of all possible worlds


See also Hope.
Bontemps, Roger
personification of cheery contentment. [Fr. Lit.: “Roger Bontemps” in Walsh Modern, 66]
beset by inconceivable misfortunes, hero indifferently shrugs them off. [Fr. Lit.: Candide]
Micawber, Mr.
sanguine gentleman, constantly “waiting for something to turn up.” [Br. Lit.: David Copperfield
Pangloss, Dr.
Candide’s incurably optimistic tutor. [Fr. Lit.: Candide]
always finds something to be glad about. [Am. Lit.: Pollyanna; Am. Cinema: Pollyanna in Disney Films, 170–172]


What a programmer is full of after fixing the last bug and just before actually discovering the *next* last bug. Fred Brooks's book "The Mythical Man-Month" contains the following paragraph that describes this extremely well.

All programmers are optimists. Perhaps this modern sorcery especially attracts those who believe in happy endings and fairy god-mothers. Perhaps the hundreds of nitty frustrations drive away all but those who habitually focus on the end goal. Perhaps it is merely that computers are young, programmers are younger, and the young are always optimists. But however the selection process works, the result is indisputable: "This time it will surely run," or "I just found the last bug.".

See also Lubarsky's Law of Cybernetic Entomology.
References in periodicals archive ?
As a result, neuroscience tells us that optimism is actually an outcome of the brain's inability to code mistakes when evaluating negative events.
So if this optimism provides successful results in politics, sports, and other aspects of life, it will surely work in marketing.
The study examined associations between optimism and heart health in more than 5,100 adults.
The 8-point increase overall in optimism was the largest recorded since January 2013 when the National Association of Convenience Stores (NACS) introduced its monthly NACS Consumer Fuels Survey to examine how gas prices affect consumer sentiment.
CFOs optimism regarding key global economies, however, dropped significantly.
Meanwhile, the economic situation in the eurozone seems to be less of an issue than a year ago when over a third of SMEs considered this a dampener to their optimism, a figure that has dropped to just under a quarter this year.
Our dreams of the future are colored (as the saying goes: "through rose-colored glasses") by an optimism bias.
The findings show that most individuals in most countries worldwide are optimistic and that higher levels of optimism are associated with improved subjective well-being and perceived health worldwide.
Bonfiglio noted that optimism is the tendency to believe that good things will happen in the future.
The relationship between higher dispositional optimism and lower depression was also found in other studies (Mosher, Prelow, Chen and Yackel, 2006; Tao, 2006).
The methodology comprises ten different factors, such as revenue, profits and head count, but when the global economy alone is considered, just 18 per cent of respondents expressed optimism.
NEW YORK: Oil prices rose more than 2 percent Tuesday on optimism that Greece can pass an unpopular austerity program as Europe fashions a solution to Athens' debt woes and also on lift from a weak dollar.