Albert Sabin and prove its extraordinary effectiveness and safety. The Sabin vaccine worked in the intestines to block the poliovirus from entering the bloodstream. In the intestines, Sabin had discovered, the poliovirus multiplied and attacked. Thus, the oral vaccine broke the chain of transmission of the virus and allowed for the possibility that polio might one day be eradicated. Between 1955 and 1961, the oral vaccine was tested on at least 100 million people in the USSR, parts of Eastern Europe, Singapore, Mexico, and the Netherlands. The first industrial production and mass use of oral poliovirus vaccine (OPV) from Sabin strains was
Necessity is the mother of invention our invention." Jowett's translation is noted for injecting flowery, if not florid, language familiar to his Victorian era audience. Jowett himself, in "Plato's Republic: The Greek Text", Vol. III "Notes", 1894, p. 82, gives a literal translation of Plato as "our need will be the real creator," without the proverbial flourish. In an address to the Mathematical Association of England on the importance of education in 1917, Alfred North Whitehead argued that ""the basis of invention is science, and science is almost wholly the outgrowth of pleasurable intellectual curiosity."" and in contrast to the old proverb ""Necessity is the mother