Does Science Have Limits? — Marcelo Gleiser, NPR science blogger and physics prof at Dartmouth College, is among the more modest of the popular science writers. His new book is called The Island of Knowledge: The Limits of Science and the Search for Meaning (Basic Books, 2014), in which he examines the limits of science from several angles. For an earlier treatment of this topic see Science and Its Limits by Del Ratzsch (IVP, 2000).