“Intellectuals and Race“ by Thomas Sowell, Basic Books, 2013, 184 pages, $25.99. Thomas Sowell, senior fellow at the Hoover Institution, is not a newcomer to the theme of intellectuals and race. In his 1985 Marxism: Philosophy and Economics he noted that Karl Marx referred to German socialist Ferdinand Lassalle as a “Jewish n–ger,” based on his “cranial formation” and hair growth. Marx also said that Lassalle’s paternal grandmother or mother was “crossed with a n–ger” and that “the fellow’s importunity is also n–ger-like.” Sowell’s The Economics and Politics of Race, along other writings from a conservative viewpoint, drew attacks from...