… is from page 135 of my late, great colleague Walter Williams’s 2015 book, American Contempt for Liberty, which is a collection of many of Walter’s columns and essays; this quotation specifically is from Walter’s July 22nd, 2009, syndicated column, “The Racism of Diversity“:
Colleges and universities with racially preferential admittance policies are doing a great disservice to blacks in another, mostly ignored, way. By admitting poorly prepared blacks, they are helping to conceal the grossly fraudulent education the blacks receive at the K through 12 grades.