"This grand panorama, this imaginative sweep, this staggering erudition, this Nietzschean prose, with its fine color and ringing force, mark a work that must endure."
-- Henry Hazlitt, New York Sun.
"Here is one of the mighty books of the century, which, sooner or later, will be read by all who ponder the riddle of existence... it is a truly monumental work, at once depressing in its pessimism and exhilarating in its compelling challenge to our accepted ideas."
-- Arthur D. Gayer, The Forum.
"As one reads Spengler the thought keeps recurring, ever more insistently, that here again is one of those universal minds which we had come to think were no longer possible."
-- Allen V. Peden,
St. Louis Post-Dispatch.
"Audacious, profound, crochety, absurd, exciting, and magnificent."
-- Lewis Mumford, The New Republic."With monumental learning, with an independence and coldness of judgment which defers nothing to great names or consecrated opinions, and in a style always forceful and in places eloquent, Spengler surveys man's cosmic march, analyzes social classes and the work of leaders, dissects the idea of the State... challenges the economic interpretation of history and appraises religion and religions, only to find them all, in the culture of the West, running fast to decay under the impetus of civilization doomed by destiny from which there is no escape."
-- William MacDonald, New York Times.
"Not since Nietzsche left his indelible mark upon European thought has a work of philosophy come out of Germany, or any other country in Europe, comparable in importance, brilliance and encyclopaedic knowledge with The Decline of the West."
-- Ernest Boyd, The Independent.
"For his methods, his challenges, and his attempts to portray the morphology of civilization, and his flaming appeal to the imagination, Spengler should be read by all who are trying to grope their way in the dusk of evening or dawn."
-- Charles Beard, New York Herald Tribune Books.