This is one author's examination of the whole matter of the search for social laws, written at a time in which thenatural sciences were abandoning the concept of fixed laws and replacing them with a concept of relativity. Originally published in 1930. A UNC Press Enduring Edition -- UNC Press Enduring Editions use the latest in digital technology to make available again books from our distinguished backlist that were previously out of print. These editions are published unaltered from the original, and are presented in affordable paperback formats, bringing readers both historical and cultural value.