In arguing against this dominant thesis, Edelstein draws from the conclusions of scholars of the nineteenth and early twentieth centuries and discusses ideas of Auguste Comte and Wilhelm Dilthey.

Originally published in 1967. Ludwig Edelstein characterizes the idea of "progress" in Greek and Roman times. He analyzes the ancients' belief in "a tendency inherent in nature or in man to pass through a regular sequence of stages of development in past, present, and future, the latter stages being—with perhaps occasional retardations or minor regressions—superior to the earlier." Edelstein's contemporaries asserted that the Greeks and Romans were entirely ignorant of a belief in progress in this sense of the term. In arguing against this dominant thesis, Edelstein draws from the conclusions of scholars of the nineteenth and early twentieth centuries and discusses ideas of Auguste Comte and Wilhelm Dilthey.

We may believe in the doctrine of Progress or we may not, but in either case it is a matter of interest to examine the origins and trace the history of what is now, even should it ultimately prove to be no more than an idolum saeculi, the animating and controlling idea of western civilisation. For the earthly Progress of humanity is the general test to which social aims and theories are submitted as a matter of course.

The idea of progress from the Enlightenment to postmodernism is still very much with us. In intellectual discourse, journals, popular magazines, and radio and talk shows, the debate between those who are "progressivists" and those who are "declinists" is as spirited as it was in the late seventeenth century. In History of the Idea of Progress, Robert Nisbet traces the idea of progress from its origins in Greek, Roman, and medieval civilizations to modern times. It is a masterful frame of reference for understanding the present world. Nisbet asserts there are two fundamental building blocks necessary to Western doctrines of human advancement: the idea of growth, and the idea of necessity. He sees Christianity as a key element in both secular and spiritual evolution, for it conveys all the ingredients of the modern idea of progress: the advancement of the human race in time, a single time frame for all the peoples and epochs of the past and present, the conception of time as linear, and the envisagement of the future as having a Utopian end. In his new introduction, Nisbet shows why the idea of progress remains of critical importance to studies of social evolution and natural history. He provides a contemporary basis for many disciplines, including sociology, economics, philosophy, religion, politics, and science. History of the Idea of Progress continues to be a major resource for scholars in all these areas.

These essays represent the full range of Dodds' literary and philosophical interests, and his ability to combine profound scholarship with the lucid humanity of a teacher convinced of the value of Greek studies to the modern world.