eurekayoudaoicibaDictYouDict[eureka 词源字典]
eureka: [16] The Greek mathematician Archimedes (c. 287–212 BC) was commissioned by King Hiero II of Syracuse to find out whether the goldsmith who had made a new crown for him had fraudulently mixed some silver in with the gold. In order to do so, Archimedes needed to ascertain the metal’s specific gravity. But how to do this? According to Plutarch, he decided to take a bath to ponder the problem.

He filled the bath too full, and some of the water overflowed – and it suddenly occurred to Archimedes that a pure-gold crown would displace more water if immersed than one made from an alloy. Elated at this piece of lateral thinking, Archimedes is said to have leapt out of the bath shouting heúrēka! ‘I have found!’, the perfect indicative of Greek heurískein ‘find’ (source of English heuristic [19]).

The earliest occurrence of the word in an English text as an exclamation of delight at discovery is in John Dee’s Preface, but there it appears in Greek characters; the first English author to fully naturalize it was probably Henry Fielding in Joseph Andrews 1742; ‘Adams returned overjoyed cring out “Eureka!”’ (The goldsmith, incidentally, had adulterated the gold.)

=> heuristic[eureka etymology, eureka origin, 英语词源]
American dreamyoudaoicibaDictYouDict
coined 1931 by James Truslow Adams (1878-1949), U.S. writer and popular historian (unrelated to the Massachusetts Adamses), in "Epic of America."
[The American Dream is] that dream of a land in which life should be better and richer and fuller for everyone, with opportunity for each according to ability or achievement. It is a difficult dream for the European upper classes to interpret adequately, and too many of us ourselves have grown weary and mistrustful of it. It is not a dream of motor cars and high wages merely, but a dream of social order in which each man and each woman shall be able to attain to the fullest stature of which they are innately capable, and be recognized by others for what they are, regardless of the fortuitous circumstances of birth or position. [Adams]
Others have used the term as they will.
wroth (adj.)youdaoicibaDictYouDict
Old English wrað "angry" (literally "tormented, twisted"), from Proto-Germanic *wraith- (cognates: Old Frisian wreth "evil," Old Saxon wred, Middle Dutch wret, Dutch wreed "cruel," Old High German reid, Old Norse reiðr "angry, offended"), from PIE *wreit- "to turn" (see wreath). Rare or obsolete from early 16c. to mid-19c., but somewhat revived since, especially in dignified writing, or this:
Secretary: "The Dean is furious. He's waxing wroth."
Quincy Adams Wagstaf [Groucho]: "Is Roth out there too? Tell Roth to wax the Dean for a while."
["Horse Feathers," 1932]
ideocracyyoudaoicibaDictYouDict
"Governance of a state according to the principles of a particular (political) ideology; a state or country governed in this way", Early 19th cent.; earliest use found in John Adams (1735–1826), president of the United States of America. From ideo- + -cracy.