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His biographer has happily recalled Mather 's forgotten interest in scientific inquiry , and for this slight relief from the intolerable drab of his life-story one may be grateful . Singleness of national purpose may be undermined . It will not be contested , that all these characters are united in Polybius , who , in a fragment of his sixth book , translated by Edward Spelman , p. 291 at the end of his translation of the Roman Antiquities of Dionysius Halicarnassensis , says : " It is customary to establish three sorts of governments ; kingly government , aristocracy , and democracy : upon which one may very properly ask them , whether they lay these down as the only forms of government , or as the best ; for in both cases they seem to be in an error , since it is manifest , that the best form of government is that which is compounded of all three . " " This detection may finally tell us what these mysterious gamma-ray bursts are , helping to resolve one of the biggest mysteries in astrophysics , " said Hugh Van Horn , Director of the NSF 's Division of Astronomical Sciences . Thus , the polygraph examination may not be withheld from this requestor under section 3 ( a ) ( 1 ) . “ [ A ] n invidious purpose may often be inferred from the totality of the relevant facts , including the fact , if it is true , that the law bears more heavily on one race than another . Occasionally the turn may take a more elaborate form . Thus , at least with respect to this requestor , no part of the polygraph examination may be said to be " deemed confidential by law " as required for exception from public disclosure under section 3 ( a ) ( 1 ) . Moreover , the workers who most need medical surveillance are those in poor or marginal health , and such workers are likely to be particularly concerned that a medical examination may result in a recommendation that they be removed from their current job .