Now if with mere knowledge of perception there arose the possibility of illusion and deception, by which the previous infallibility of the blind striving of will was done away with, so that mechanical and other instincts, as expressions of unconscious will, had to lend their help in the midst of those that were conscious, with the entrance of reason that certainty and infallibility of the expressions of will (which at the other extreme in unorganised nature appeared as strict conformity to law) is almost entirely lost; instinct disappears altogether;
Baldin eta ezagutza begiesle soilarekin begitazioaren eta engainuaren ahaltasuna sartu bazen, zeinaren bitartez aurreko hutsezintasuna nahimenaren ezagutzagabeko bultzatzean gainditua izan baitzen, beraz instintua eta joera artifizialak nahimen-kanporatze ezagutzagabe gisa ezagutzak gidaturikoen artean haren laguntzara etorri behar izan bazuten; horrela ia erabat galtzen dira arrazoimenaren sarrerarekin ziurtasun hura eta nahimen-kanporatzeen hutsezintasuna (zeina beste muturrean, natura inorganikoan, erregulartasun zorrotz gisa agertzen baita):