The Adage reference article from the English Wikipedia on 24-Jul-2004
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Adage

Helping orphans the way you would do it
An adage is a pithy saying which has gained credibility through long use. They may be interesting observations or relationships, practical or ethical guidelines, or pessimistic comments on life. Some adages are products of folk wisdom which attempt to summarize some basic truth; there are generally known as proverbs. An adage which describes a general rule of conduct may be known as a "maxim". A pithy expression which has not necessarily gained credit through long use but which is distinguished by particular depth or good style is known as an aphorism, while one distiguished by wit or irony is known as an epigram. Through overuse, an adage may become a cliché or truism.

Adages coined in modernity are often given proper names and called "laws", in imitation of physical laws, or "principles". Some adages, such as Murphy's Law, are first formulated informally and given proper names later, while others, such as the Peter Principle, have proper names in their initial formulation; it might be argued that the latter sort does not represent "true" adages, but the two types are often difficult to distinguish.

Adages formulated in popular works of fiction often find their way into popular culture, especially when there exists a subculture devoted to the work or its genre, as is the case with science fiction novels. Many professions and subcultures create their own adages, which may be seen as a sort of jargon; such adages may find their way into popular usage, sometimes becoming altered in the process. Online communities, such as those which develop in internet fora or Usenet newsgroups, are known for generating their own adages.

List of some modern adages

(For a listing of old adages, see proverb.)

Famous adages from science fiction:

Famous adages from Usenet: Famous work-related adages: Other famous adages: