Pierre-Louis Moreau de Maupertuis on “Gene Theory”, Mutation, and Descent with Modification in 1751Pierre-Louis Moreau de Maupertuis in Systéme de la Nature (Œuvres 2: 1756), 42 in Proceedings, American Philosophical Society, vol. 104, no. 2, (1960), p. 234.
Could we not explain in this way [mutation] how from two individuals alone the multiplication of the most dissimilar species might have resulted? Their origin would be owing only to certain fortuitous products [chance], in which the elementary particles failed to retain the order they possessed in the father and mother animals; each degree of error would have created a new species; and by dint of repeated divergences there would have come about the infinite diversity of animals that we see today; which will perhaps still increase with time, but to which the passage of centuries will perhaps bring only imperceptible additions.