Source: Last and First Men (1930), Chapter I: Balkan Europe; Section 4, “The Russo-German War” (pp. 29-30)
Quotes from book
Last and First Men

Last and First Men: A Story of the Near and Far Future is a "future history" science fiction novel written in 1930 by the British author Olaf Stapledon. A work of unprecedented scale in the genre, it describes the history of humanity from the present onwards across two billion years and eighteen distinct human species, of which our own is the first. The book employs a narrative conceit that, under subtle inspiration, the novelist has unknowingly been dictated a channelled text from the last human species.
Source: Last and First Men (1930), Chapter VII: The Rise of the Second Men; Section 1, “The Appearance of a New Species” (p. 102)
Preface to English Edition (p. 9)
Last and First Men (1930)
Source: Last and First Men (1930), Chapter XIV: Neptune; Section 3, “Slow Conquest” (p. 211)
Source: Last and First Men (1930), Chapter XI: Man Remakes Himself; Section 4, “The Culture of the Fifth Men” (p. 173)
Source: Last and First Men (1930), Chapter V: The Fall of the First Men; Section 3, “The Cult of Youth” (p. 84)
“Nations appeared, and all the phobias that make up nationalism.”
Source: Last and First Men (1930), Chapter IX: Earth and Mars; Section 2, “The Ruin of Two Worlds” (p. 137)