Great nations write their autobiographies in three manuscripts—the book of their deeds, the book of their words, and the book of their art. Not one of these books can be understood unless we read the two others; but of the three, the only quite trustworthy one is the last. The acts of a nation may be triumphant by its good fortune; and its words mighty by the genius of a few of its children: but its art, only by the general gifts and common sympathies of the race.
John Ruskin
Well, that explains Obama’s library.