Bernardin de SAINT-PIERRE (1737-1814). Autograph manuscript, De la nature; 1 oblong page in-4 with erasures and corrections. Draft for his Études de la nature, first ideas in the form of a dialogue with Jean-Jacques ROUSSEAU: "Je disois un jour à Jean-Jacques, il y a cinq cents manières de voir la nature, oui me répondit il sans la véritable. Nature resembles a vast mountain, one side of which I also believe that the organs and reason given to each man to observe it are no less vain"... Etc.