"Few words enter more largely into the composition of slang, and colloquialisms bordering on slang, than does the word BLUE. Expressive alike of the utmost contempt, as of all that men hold dearest and love best, its manifold combinations, in ever varying shades of meaning, greet the philologist at every turn." [John S. Farmer, "Slang and Its Analogues Past and Present," 1890, p.252]The color of constancy since Chaucer at least, but apparently for no deeper reason than the rhyme in true blue (c.1500). From early times blue was the distinctive color of the dress of servants, which may be the reason police uniforms are blue, a tradition Farmer dates to Elizabethan times. For blue ribbon see cordon bleu under cordon. Many IE languages seem to have had a word to describe the color of the sea, encompasing blue and green and gray; e.g. Ir. glass (see Chloe); O.E. hæwen "blue, gray," related to har (see hoar); Serbo-Cr. sinji "gray-blue, sea-green;" Lith. yvas, Rus. sivyj "gray."
The butterfly effect is a deceptively simple insight extracted from a complex modern field. As a low-profile assistant professor in MIT's department of meteorology in 1961, [Edward] Lorenz created an early computer program to simulate weather. One day he changed one of a dozen numbers representing atmospheric conditions, from .506127 to .506. That tiny alteration utterly transformed his long-term forecast, a point Lorenz amplified in his 1972 paper, "Predictability: Does the Flap of a Butterfly's Wings in Brazil Set Off a Tornado in Texas?" [Peter Dizikes, "The Meaning of the Butterfly," The Boston Globe, June 8, 2008]
"Do not do unto others as you would that they should do unto you. Their tastes may not be the same." [George Bernard Shaw, 1898]