Thus, instead of believing that I would better understand my own organisation, and then my own knowing and willing, and my movements following upon motives, if I could only refer them to movements due to electrical, chemical, and mechanical causes, I must, seeing that I seek philosophy and not etiology, learn to understand from my own movements following upon motives the inner nature of the simplest and commonest movements of an unorganised body which I see following upon causes.
Horrela nik neure organismo propioa, gero neure ezagutze eta nahi izatea eta motiboengatiko neure higidura hobeki ezagutuko nituzkeela sinetsi ordez, baldin eta kausengatiko higidurara murriztu ahal izango banu, elektrizitatearen bitartez, kimismoaren bitartez, mekanismoaren bitartez;