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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 ?
With 18 events across the country, the Optimism Walk series brings thousands of participants together across the country to support the association's mission to help every person impacted by Parkinson's live life to the fullest.
She and her colleagues defined optimism as the "general expectation that good things will happen or the belief that the future will be favorable because one can control important outcomes."
The women were aged between 58 and 86 when they completed an optimism assessment in 2004, and their mortality status was tracked through to 2014.
However, the researchers are unclear on how exactly optimism helps people live longer.
The men's age range was 41-90 when they completed an optimism assessment in 1986, and their mortality status was tracked through to 2016.
Optimism was also powerful predictor of longevity regardless of a person's habits when it came to tobacco and alcohol use, exercise, eating well or getting routine medical care.
Participants' levels of optimism were measured using a 10-item survey, which asked them to rate on a five-point scale how much they agreed with positive statements such as "I'm always optimistic about my future" and with negatively worded sentences such as "I hardly expect things to go my way."
Hernandez and her co-authors found that with each standard deviation increase - the typical distance across data points - in participants' optimism score they had 78 per cent higher odds of reporting very good sleep quality.
In addition, according to the financial holding firm's poll, an economic optimism index for the next six months also rose from minus 16.6 in May to minus 7.0 in June.
The latest personal optimism net figure was five points down from the 'excellent' +47 net rating (50 percent optimistic, 4 percent pessimistic) in March, which was also the highest score posted during the Duterte administration.