Note 182 — Chapter IV · PRAGMATISM AND HUMAN ACTIVITY

So much may, I suppose, be inferred from the contentions (explicit and implicit) of all biologists and evolutionists. Human life they all seem to regard as a kind of continuity or development of the life of universal nature, whether their theory of the origin of life be that of (1) “spontaneous generation,” (2) “cosmozoa” (germs capable of life scattered throughout space), (3) “Preyer’s theory of the continuity of life,” (4) “Pflüger’s theory of the chemical characteristics of proteid,” or (5) the conclusion of Verworn himself, “that existing organisms are derived in uninterrupted descent from the first living substance that originated from lifeless substance” (General Physiology, p. 315).