 There are a number of problems with this explanation. In the first place, centrality and the appearance of analyticity don’t seem to be so closely related. As Quine (1960, p. 66) himself noted, there are are plenty of central, unrevisable beliefs that don’t seem remotely analytic, e.g., “There have been black dogs,” “The earth has existed for more than five minutes,” “Mass-energy is conserved”; and many standard examples of what seem analytic aren’t seriously central: “Bachelors are unmarried,” “A fortnight is two weeks” or “A beard is facial hair” are pretty trivial verbal issues, and could easily be revised if people really cared (cf., Juhl and Loomis, 2010, p. 118).