| http://www.w3.org/ns/prov#value | - Spending sleepless nights at the bedside of children mortally sick with diphtheria or scarlet fever was very real once, but it is not a reality we want to have back. (How to define reality more precisely is a complex issue to which Katherine has made notable contributions.) On occasion your intuitions about the growing thirst for reality are unexpectedly confirmed by asides of perceptive authors w
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