SO GREAT A NOISE: Jean-Jacques Rousseau, David Hume, and the End of Enlightenment,” by professors Robert Zaretsky and John T. Scott, which vividly examines the failed friendship between two of the eighteenth-century’s greatest thinkers, exploring how their feud tested the basis of their philosophies and marked the end of the Enlightenment era, in a nice deal to W.W. Norton editor Alane Mason by agent Marly Rusoff (NA)